def read_aligner_output(rm_out, gtffile, is_stranded, tmp_dir, resume,
call_all):
"""
Use bedtools to get transcripts/genes with multi-mapped reads.
Returns a list of transcripts/genes.
"""
if not (resume and os.path.isfile(tmp_dir + '/gtf2multireads.bed')):
rm_bed = pybedtools.BedTool(rm_out)
gtf = pybedtools.BedTool(gtffile)
gtf_bed_rm = gtf.intersect(
rm_bed, s=True, u=True) if is_stranded else gtf.intersect(rm_bed,
u=True)
gtf_bed_rm.saveas(tmp_dir + '/gtf2multireads.bed')
pybedtools.cleanup()
tid_list = []
if call_all:
gtf_to_read = gtffile
else:
gtf_to_read = tmp_dir + '/gtf2multireads.bed'
with open(gtf_to_read, 'r') as f:
for line in f:
ele = line.rstrip().split('\t')
gene_id = ele[3]
gene_chr, gene_start, gene_end = ele[0], int(ele[1]), int(ele[2])
gene_strand = ele[5]
tid_list.append(
[gene_id, gene_chr, gene_strand, gene_start, gene_end])
print_time_stamp('Read transcripts with multi-reads: ' +
str(len(tid_list)))
return tid_list
def calculate_coverage(bamfile_name, output_dir):
os.makedirs(f'{output_dir}/tmp', exist_ok=True)
pybedtools.set_tempdir(f'{output_dir}/tmp')
bed = pybedtools.BedTool(bamfile_name)
df = bed.genome_coverage(dz = True).to_dataframe(names=['contig','pos', 'depth'])
pybedtools.cleanup()
return df
def test_cleanup():
"""
make sure the tempdir and cleanup work
"""
assert os.path.abspath(pybedtools.get_tempdir()) == os.path.abspath('.')
# make a fake tempfile, not created during this pybedtools session
testfn = 'pybedtools.TESTING.tmp'
os.system('touch %s' % testfn)
assert os.path.exists(testfn)
# make some temp files
a = pybedtools.BedTool(os.path.join(testdir, 'data', 'a.bed'))
b = pybedtools.BedTool(os.path.join(testdir, 'data', 'b.bed'))
c = a.intersect(b)
# after standard cleanup, c's fn should be gone but the fake one still
# there...
pybedtools.cleanup(verbose=True)
assert os.path.exists(testfn)
assert not os.path.exists(c.fn)
# Unless we force the removal of all temp files.
pybedtools.cleanup(remove_all=True)
assert not os.path.exists(testfn)
# a.fn and b.fn better be there still!
assert os.path.exists(a.fn)
assert os.path.exists(b.fn)
def GetRatioGenome():
pulldown = pysam.Samfile(args.pulldown)
control = pysam.Samfile(args.control)
if args.tot_pulldown is not None:
tot_pulldown = args.tot_pulldown
tot_control = args.control
else:
tot_pulldown = pulldown.mapped + pulldown.unmapped
tot_control = control.mapped + control.unmapped
print >> sys.stderr, "Total number of reads in pulldown sample: %d" % (
tot_pulldown)
print >> sys.stderr, "Total number of reads in control sample: %d" % (
tot_control)
# get spike-in read within bed file
pulldown_bam = pybedtools.BedTool(args.pulldown)
control_bam = pybedtools.BedTool(args.control)
spike_pulldown = pulldown_bam.intersect(args.pos, f=0.5).count()
spike_control = control_bam.intersect(args.pos, f=0.5).count()
print >> sys.stderr, "Total number of reads mapped in spike-in in pulldown sample: %d" % (
spike_pulldown)
print >> sys.stderr, "Total number of reads mapped in spike-in in control sample: %d" % (
spike_control)
ratio = float(spike_control) / float(spike_pulldown) * float(
tot_pulldown) / float(tot_control)
print >> sys.stderr, "Ratio is %.6f" % (ratio)
pulldown.close()
control.close()
pybedtools.cleanup()
def vcf_to_df_worker(arg):
"""Convert CANVAS vcf to a dict, single thread"""
canvasvcf, exonbed, i = arg
logging.debug("Working on job {}: {}".format(i, canvasvcf))
samplekey = op.basename(canvasvcf).split(".")[0].rsplit("_", 1)[0]
d = {"SampleKey": samplekey}
exons = BedTool(exonbed)
cn = parse_segments(canvasvcf)
overlaps = exons.intersect(cn, wao=True)
gcn_store = {}
for ov in overlaps:
# Example of ov.fields:
# [u'chr1', u'11868', u'12227', u'ENSG00000223972.5',
# u'ENST00000456328.2', u'transcribed_unprocessed_pseudogene',
# u'DDX11L1', u'.', u'-1', u'-1', u'.', u'0']
gene_name = "|".join((ov.fields[6], ov.fields[3], ov.fields[5]))
if gene_name not in gcn_store:
gcn_store[gene_name] = defaultdict(int)
cn = ov.fields[-2]
if cn == ".":
continue
cn = int(cn)
if cn > 10:
cn = 10
amt = int(ov.fields[-1])
gcn_store[gene_name][cn] += amt
for k, v in sorted(gcn_store.items()):
v_mean, v_median = counter_mean_and_median(v)
d[k + ".avgcn"] = v_mean
d[k + ".medcn"] = v_median
cleanup()
return d
def main():
"""
Third quick example from the documentation -- count reads introns and
exons, in parallel
"""
ap = argparse.ArgumentParser(prog=os.path.basename(sys.argv[0]),
usage=__doc__)
ap.add_argument('--gff', required=True,
help='GFF or GTF file containing annotations')
ap.add_argument('--bam', required=True,
help='BAM file containing reads to be counted')
ap.add_argument('--stranded', action='store_true',
help='Use strand-specific merging and overlap. '
'Default is to ignore strand')
ap.add_argument('--no-parallel', dest='noparallel', action='store_true',
help='Disables parallel computation')
ap.add_argument('-o', '--output',
help='Optional file to which results will be written; '
'default is stdout')
ap.add_argument('-v', '--verbose', action='store_true',
help='Verbose (goes to stderr)')
args = ap.parse_args()
gff = args.gff
bam = args.bam
stranded = args.stranded
parallel = not args.noparallel
# Some GFF files have invalid entries -- like chromosomes with negative
# coords or features of length = 0. This line removes them and saves the
# result in a tempfile
g = pybedtools.BedTool(gff).remove_invalid().saveas()
# Decide which version of map to use. If parallel, we only need 3
# processes.
pool = multiprocessing.Pool(processes=3)
# Get separate files for introns and exons in parallel (if specified)
featuretypes = ('intron', 'exon')
introns, exons = pool.map(subset_featuretypes, featuretypes)
# Perform some genome algebra to get unique and shared regions
exon_only = exons.subtract(introns).merge().remove_invalid().saveas()
intron_only = introns.subtract(exons).merge().remove_invalid().saveas()
intron_and_exon = exons\
.intersect(introns).merge().remove_invalid().saveas()
# Do intersections with BAM file in parallel
features = (exon_only, intron_only, intron_and_exon)
results = pool.map(count_reads_in_features, features)
labels = (' exon only:',
' intron only:',
'intron and exon:')
for label, reads in zip(labels, results):
print('%s %s' % (label, reads))
pybedtools.cleanup(verbose=False)
def run_spades_parallel(bam=None, spades=None, bed=None, work=None, pad=SPADES_PAD, nthreads=1, chrs=[],
max_interval_size=SPADES_MAX_INTERVAL_SIZE,
timeout=SPADES_TIMEOUT, isize_min=ISIZE_MIN, isize_max=ISIZE_MAX,
svs_to_assemble=SVS_ASSEMBLY_SUPPORTED,
stop_on_fail=False, max_read_pairs=EXTRACTION_MAX_READ_PAIRS):
pybedtools.set_tempdir(work)
logger.info("Running SPAdes on the intervals in %s" % bed)
if not bed:
logger.info("No BED file specified")
return None, None
bedtool = pybedtools.BedTool(bed)
total = bedtool.count()
chrs = set(chrs)
all_intervals = [interval for interval in bedtool] if not chrs else [interval for interval in bedtool if
interval.chrom in chrs]
selected_intervals = filter(partial(should_be_assembled, max_interval_size=max_interval_size, svs_to_assemble=svs_to_assemble),
all_intervals)
ignored_intervals = filter(partial(shouldnt_be_assembled, max_interval_size=max_interval_size, svs_to_assemble=svs_to_assemble),
all_intervals)
pool = multiprocessing.Pool(nthreads)
assembly_fastas = []
for i in xrange(nthreads):
intervals = [interval for (j, interval) in enumerate(selected_intervals) if (j % nthreads) == i]
kwargs_dict = {"intervals": intervals, "bam": bam, "spades": spades, "work": "%s/%d" % (work, i), "pad": pad,
"timeout": timeout, "isize_min": isize_min, "isize_max": isize_max, "stop_on_fail": stop_on_fail,
"max_read_pairs": max_read_pairs}
pool.apply_async(run_spades_single, kwds=kwargs_dict,
callback=partial(run_spades_single_callback, result_list=assembly_fastas))
pool.close()
pool.join()
logger.info("Merging the contigs from %s" % (str(assembly_fastas)))
assembled_fasta = os.path.join(work, "spades_assembled.fa")
with open(assembled_fasta, "w") as assembled_fd:
for line in fileinput.input(assembly_fastas):
assembled_fd.write("%s\n" % (line.strip()))
if os.path.getsize(assembled_fasta) > 0:
logger.info("Indexing the assemblies")
pysam.faidx(assembled_fasta)
else:
logger.error("No assembly generated")
assembled_fasta = None
ignored_bed = None
if ignored_intervals:
ignored_bed = os.path.join(work, "ignored.bed")
pybedtools.BedTool(ignored_intervals).each(add_breakpoints).saveas(ignored_bed)
pybedtools.cleanup(remove_all=True)
return assembled_fasta, ignored_bed
def get_sequence(reference_fasta, coordinates, strand):
"""Takes coordinates and returns sequence
bed_coor is space separated"""
bed_coor = pybedtools.BedTool(coordinates, from_string=True)
fasta = pybedtools.example_filename(reference_fasta)
seq = bed_coor.sequence(fi=fasta)
seq_str = open(seq.seqfn, 'r').read()
pybedtools.cleanup(remove_all=True)
return seq_str.replace('>', '').split('\n')[0:-1]
def getMatching(table, name, exonBed, intermediate_file_dir):
table.to_csv(os.path.join(intermediate_file_dir, 'junc.bed'), sep='\t', index=None, header=False)
bed = pybedtools.example_bedtool(os.path.join(intermediate_file_dir, 'junc.bed'))
OverlapExon = bed.intersect(exonBed, wb=True)
OverlapExon.saveas(os.path.join(intermediate_file_dir, 'OverlapExon.tsv'))
matching = pd.read_csv(os.path.join(intermediate_file_dir, 'OverlapExon.tsv'), sep='\t',
names=[name+'_chr', name+'_start', name+'_end', 'juncID', name+'_strand', name+'_fb',
name+'gene_chromosome', name+'gene_start', name+'gene_end', name+'gene_strand', name+'_gene_id',name+'_gene', name+'gene_type'])
pybedtools.cleanup(remove_all=True)
return matching
def bootstrapRandom(num):
#print(num)
global file1, file2, genome_chrom_sizes
shuffled_file1 = file1.shuffle(g=genome_chrom_sizes, chrom=True)
shuffled_file2 = file2.shuffle(g=genome_chrom_sizes, chrom=True)
f1_sorted = shuffled_file1.sort()
f2_sorted = shuffled_file2.sort()
shuffled_result = f1_sorted.jaccard(f2_sorted)
pybedtools.cleanup()
return shuffled_result['jaccard']
def main():
args = argparser()
forwardsites = findSites(args.input, args.reference, "+")
revsites = findSites(args.input, args.reference, "-")
try:
with open(args.output,'wb') as of:
for l in forwardsites + revsites:
of.write(l + "\n")
except TypeError:
for l in forwardsites + revsites:
args.output.write(l + "\n")
pybedtools.cleanup(remove_all=True)
def main():
args = argparser()
forwardsites = findSites(args.input, args.reference, "+")
revsites = findSites(args.input, args.reference, "-")
try:
with open(args.output, 'wb') as of:
for l in forwardsites + revsites:
of.write(l + "\n")
except TypeError:
for l in forwardsites + revsites:
args.output.write(l + "\n")
pybedtools.cleanup(remove_all=True)
def on_epoch_end(self, epoch, logs=None):
""" monitor PR """
x_val, y_val = self.validation_data[0], self.validation_data[1]
predictions = self.model.predict(x_val)
au_prc = average_precision_score(y_val, predictions)
print("\nau-PRC:", au_prc)
self.val_auprc.append(au_prc)
# Tmp bedfiles taking up huge amount of disk space.
# Cleaning up after every 10 epochs.
print(epoch)
if (epoch+1) % 5 == 0:
pybedtools.cleanup(verbose=0)
def preprocess_bam_to_bed(bam, output):
'''
Given local bam file, convert reads to set of 101bp intervals and output as bed file. Filter for reads thats are
'''
# convert bam to bed
vprint("Converting bam to bed...")
bam = BedTool(bam)
bed = bam.bam_to_bed()
# filter intervals
vprint("Filter reads by size...")
bed_chunk_iter = bed.to_dataframe(chunksize=10000000) # chunk large file
chunks = []
for chunk in bed_chunk_iter:
keep = (
chunk[["start", "end"]]
.swifter.progress_bar(enable=True, desc=bam)
.apply(lambda row: is_valid_interval(row["start"], row["end"]), axis=1)
)
chunks.append(chunk[keep])
bed_df = pd.concat(chunks)
# 101bp interval for input
vprint("Define 101bp intervals...")
bed_df["end"] = (
bed_df["start"].swifter.progress_bar(
enable=True).apply(define_interval)
)
bed_df["name"] = "-"
# remove duplicates
vprint("Drop duplicate intervals...")
bed_df.drop_duplicates(inplace=True)
# TODO extraneous chromosomes?
vprint("Remove extra chromosomes...")
chromosomes = list(range(1, 23))
chromosomes.append('X')
chromosomes.append('Y')
chromosomes = [f'chr{c}' for c in chromosomes]
bed_df = bed_df.loc[bed_df['chrom'].isin(chromosomes)]
# Save result
vprint(f"Saving {bed_df.shape[0]} intervals...")
BedTool.from_dataframe(bed_df).moveto(output)
# cleanup tmp files
pybedtools.cleanup(remove_all=True)
vprint("Done.")
def find_variant_fragments(query_fp, fragment_fp, output_fp, db_url, table):
""" Create table of variant fragment IDs.
"""
fragment_bed = pybedtools.BedTool(fragment_fp)
desc = 'Finding variant fragments...'
bar_format = '{desc}: {n_fmt} {unit}'
t = tqdm(total=0,
unit='variants',
desc=desc,
disable=False,
bar_format=bar_format)
chunksize = 200000
cols = ['chr', 'frag_id', 'id', 'variant_id']
pybedtools.set_tempdir(os.path.dirname(output_fp))
db = create_engine(db_url, echo=False)
idx = 1
for query_df in pd.read_csv(query_fp,
sep='\t',
compression='gzip',
chunksize=chunksize,
usecols=['chr', 'variant_pos', 'variant_id']):
query_df = query_df.rename(columns={'variant_pos': 'end'})
query_df['id'] = range(idx, idx + len(query_df))
query_df['start'] = query_df['end'] - 1
query_bed = pybedtools.BedTool.from_dataframe(
query_df[['chr', 'start', 'end', 'id', 'variant_id']])
df = fragment_bed.intersect(query_bed, wb=True)
df = df.to_dataframe(names=[
'frag_chr', 'frag_start', 'frag_end', 'frag_id', 'chrom', 'start',
'end', 'id', 'variant_id'
])
cols = ['frag_id', 'chrom', 'id']
mode = 'w' if t.total == 0 else 'a'
header = 'True' if t.total == 0 else None
df[cols].to_csv(output_fp, sep='\t', header=header, mode=mode)
if table:
if_exists = 'replace' if t.total == 0 else 'append'
df[cols].to_sql(table, con=db, if_exists=if_exists, index=False)
idx += len(query_df)
t.total += len(query_df)
t.update(len(query_df))
t.close()
pybedtools.cleanup(remove_all=True)
if not table:
return
create_index(table, db)
def find_gene_fragments(query_fp, fragment_fp, output_fp, db_url, table):
""" Create table of gene fragment IDs.
"""
fragment_bed = pybedtools.BedTool(fragment_fp)
desc = 'Finding gene fragments...'
bar_format = '{desc}: {n_fmt} {unit}'
t = tqdm(total=0,
unit='genes',
desc=desc,
disable=False,
bar_format=bar_format)
chunksize = 2000
pybedtools.set_tempdir(os.path.dirname(output_fp))
db = create_engine(db_url, echo=False)
for query_df in pd.read_csv(query_fp,
sep='\t',
compression='infer',
chunksize=chunksize):
#query_df.columns = ['id', 'chr', 'start', 'end', 'gene', 'gencode_id']
query_bed = pybedtools.BedTool.from_dataframe(
query_df[['chrom', 'start', 'end', 'id', 'gencode_id']])
# print(query_bed)
df = fragment_bed.intersect(query_bed, wb=True)
df = df.to_dataframe(names=[
'frag_chr', 'frag_start', 'frag_end', 'frag_id', 'chrom', 'start',
'end', 'id', 'gencode_id'
])
cols = ['frag_id', 'chrom', 'id']
mode = 'w' if t.total == 0 else 'a'
header = 'True' if t.total == 0 else None
df[cols].to_csv(output_fp,
sep='\t',
header=header,
mode=mode,
index=False)
if table:
if_exists = 'replace' if t.total == 0 else 'append'
df[cols].to_sql(table, con=db, if_exists=if_exists, index=False)
t.total = len(query_df)
t.update(len(query_df))
t.close()
pybedtools.cleanup(remove_all=True)
if not table:
return
create_index(table, db)
def retrieve_peaks(peak_file, peak_kwd, group_name, seq_dict):
peaks = pybedtools.BedTool(peak_file)
num_files = len(seq_dict[peak_kwd][group_name].keys())
print_time("{} batches to process".format(num_files), start_time)
for file in seq_dict[peak_kwd][group_name].keys():
if __check_exist(file):
print_time("{} exists -- skip".format(file), start_time)
continue
# Initialize output signal.
sample_index, start, stop = __file_attribute(
seq_dict[peak_kwd][group_name][file])
signal = np.empty((stop - start, args.sequence_length + 3))
signal[:] = np.NaN
signal[:, -3:-1] = sample_index
# Find peaks that overlap with each sample sequence.
for k in tqdm(range(start, stop)):
ks = k - start
signal[ks, -1] = k
signal[ks, :args.sequence_length] = 0
sample = Sample(seq_dict["input"][k])
entry = "{} {} {}".format(sample.chrom, sample.start, sample.stop)
a = pybedtools.BedTool(entry, from_string=True)
apeaks = a.intersect(peaks)
for p in apeaks:
s = p.start - sample.start
t = p.stop - sample.start
signal[ks, s:t] = 1
if (k + 1) % 1000 == 0:
pybedtools.cleanup(remove_all=True)
# Save batch data file to disk.
np.savez_compressed(
file,
group_name=group_name,
peak_type=peak_kwd,
start=start,
stop=stop,
data=signal,
)
print_time("{} targets saved in {}".format(peak_kwd, file), start_time)
def retrieve_signal(
peak_file, bigWig_file, seq_dict, tmp_file, group_name, assay_type
):
peaks = pybedtools.BedTool(peak_file)
num_samples = len(seq_dict["input"])
writer = FeatureWriter(
args.batch_size,
args.sequence_length,
num_samples,
group_name,
assay_type,
)
for k in tqdm(seq_dict["input"].keys()):
# Initialize signal track.
signal = np.zeros(args.sequence_length)
# Construct BedTool input from sample sequence location.
sample = Sample(seq_dict["input"][k])
entry = "{} {} {}".format(sample.chrom, sample.start, sample.stop)
a = pybedtools.BedTool(entry, from_string=True)
# Retrieve sample bigwig signal that fall within peak regions.
apeaks = a.intersect(peaks)
for p in apeaks:
cmd = "bigWigToBedGraph -chrom={} -start={} -end={} {} {}".format(
sample.chrom, p.start, p.stop, bigWig_file, tmp_file
)
check_call(cmd, shell=True)
with open(tmp_file, "rb") as wigs:
for line in wigs:
record = line.strip().decode("utf-8").split("\t")
s = int(record[1]) - sample.start
t = int(record[2]) - sample.start
signal[s:t] = float(record[3])
# Write signal track to disk.
writer.write_feature(
signal, k, seq_dict["input"][k][assay_type][group_name]
)
# Clean up tmp files generated by pybedtools.
if (k + 1) % 1000 == 0:
pybedtools.cleanup(remove_all=True)
return writer
def run_spades_parallel(bam=None, spades=None, bed=None, work=None, pad=SPADES_PAD, nthreads=1, chrs=[], max_interval_size=50000,
timeout=SPADES_TIMEOUT, isize_min=ISIZE_MIN, isize_max=ISIZE_MAX, disable_deletion_assembly=False, stop_on_fail=False):
pybedtools.set_tempdir(work)
bedtool = pybedtools.BedTool(bed)
total = bedtool.count()
chrs = set(chrs)
all_intervals = [interval for interval in bedtool] if not chrs else [interval for interval in bedtool if
interval.chrom in chrs]
selected_intervals = filter(partial(should_be_assembled, disable_deletion_assembly=disable_deletion_assembly), all_intervals)
ignored_intervals = filter(partial(shouldnt_be_assembled, disable_deletion_assembly=disable_deletion_assembly), all_intervals)
pool = multiprocessing.Pool(nthreads)
assembly_fastas = []
for i in xrange(nthreads):
intervals = [interval for (j, interval) in enumerate(selected_intervals) if (j % nthreads) == i]
kwargs_dict = {"intervals": intervals, "bam": bam, "spades": spades, "work": "%s/%d" % (work, i), "pad": pad,
"timeout": timeout, "isize_min": isize_min, "isize_max": isize_max, "stop_on_fail": stop_on_fail}
pool.apply_async(run_spades_single, kwds=kwargs_dict,
callback=partial(run_spades_single_callback, result_list=assembly_fastas))
pool.close()
pool.join()
logger.info("Merging the contigs from %s" % (str(assembly_fastas)))
assembled_fasta = os.path.join(work, "spades_assembled.fa")
with open(assembled_fasta, "w") as assembled_fd:
for line in fileinput.input(assembly_fastas):
assembled_fd.write("%s\n" % (line.strip()))
logger.info("Indexing the assemblies")
pysam.faidx(assembled_fasta)
ignored_bed = None
if ignored_intervals:
ignored_bed = os.path.join(work, "ignored.bed")
pybedtools.BedTool(ignored_intervals).each(add_breakpoints).saveas(ignored_bed)
pybedtools.cleanup(remove_all=True)
return assembled_fasta, ignored_bed
def GetRatioGenome():
pulldown = pysam.Samfile(args.pulldown)
control = pysam.Samfile(args.control)
if args.tot_pulldown is not None:
tot_pulldown = args.tot_pulldown
tot_control = args.control
else:
tot_pulldown = pulldown.mapped + pulldown.unmapped
tot_control = control.mapped + control.unmapped
print >>sys.stderr, "Total number of reads in pulldown sample: %d" % (tot_pulldown)
print >>sys.stderr, "Total number of reads in control sample: %d" % (tot_control)
# get spike-in read within bed file
pulldown_bam = pybedtools.BedTool(args.pulldown)
control_bam = pybedtools.BedTool(args.control)
spike_pulldown = pulldown_bam.intersect(args.pos,f=0.5).count()
spike_control = control_bam.intersect(args.pos,f=0.5).count()
print >>sys.stderr, "Total number of reads mapped in spike-in in pulldown sample: %d" % (spike_pulldown)
print >>sys.stderr, "Total number of reads mapped in spike-in in control sample: %d" % (spike_control)
ratio = float(spike_control)/float(spike_pulldown)*float(tot_pulldown)/float(tot_control)
print >>sys.stderr, "Ratio is %.6f" % (ratio)
pulldown.close()
control.close()
pybedtools.cleanup()
def vcf_to_df_worker(arg):
""" Convert CANVAS vcf to a dict, single thread
"""
canvasvcf, exonbed, i = arg
logging.debug("Working on job {}: {}".format(i, canvasvcf))
samplekey = op.basename(canvasvcf).split(".")[0].rsplit('_', 1)[0]
d = {'SampleKey': samplekey}
exons = BedTool(exonbed)
cn = parse_segments(canvasvcf)
overlaps = exons.intersect(cn, wao=True)
gcn_store = {}
for ov in overlaps:
# Example of ov.fields:
# [u'chr1', u'11868', u'12227', u'ENSG00000223972.5',
# u'ENST00000456328.2', u'transcribed_unprocessed_pseudogene',
# u'DDX11L1', u'.', u'-1', u'-1', u'.', u'0']
gene_name = "|".join((ov.fields[6], ov.fields[3], ov.fields[5]))
if gene_name not in gcn_store:
gcn_store[gene_name] = defaultdict(int)
cn = ov.fields[-2]
if cn == ".":
continue
cn = int(cn)
if cn > 10:
cn = 10
amt = int(ov.fields[-1])
gcn_store[gene_name][cn] += amt
for k, v in sorted(gcn_store.items()):
v_mean, v_median = counter_mean_and_median(v)
d[k + ".avgcn"] = v_mean
d[k + ".medcn"] = v_median
cleanup()
return d
def bin_frag(outdir, bin_bed, all_frag_bed, fragcount_bed):
logging.info("output directory: %s", outdir)
logging.info("Bin file: %s", bin_bed)
logging.info("All restriction fragments bed file: %s", all_frag_bed)
logging.info("Number of fragdata files: %d", len(fragcount_bed))
os.mkdir(outdir)
# open bins file
bins = pbt.BedTool(bin_bed)
logging.info("read in %8d bins", len(bins))
# open all frag file
all_frag = pbt.BedTool(all_frag_bed)
logging.info("read in %8d restriction fragments", len(all_frag))
# match up bins with restriction fragments
#TODO: stats on the result
bins_with_any_frag = count_frags_per_bin(bins, all_frag)
logging.info("bins that contained any fragments: %d", len(bins_with_any_frag))
make_bedgraph_files(fragcount_bed, bins_with_any_frag, outdir)
# cleanup
pbt.cleanup(remove_all = True)
def extract_target_genes_transcripts(dicoNiourk):
if dicoNiourk["target"]!="":
print("\x1b[0;38;2;"+dicoNiourk["color"]["light1"]+"m") ; sys.stdout.write("\033[F")
dicoNiourk["spinner"].text = " • Extract target genes"
dicoNiourk["spinner"].start()
# Find intersecation between gff and target bed
bed = BedTool(dicoNiourk["target"])
genes = BedTool(dicoNiourk["refseq_gff"])
dicoNiourk["target_gene"] = {} # id to name
dicoNiourk["target_transcript"] = {} # id to name
dico_intersect_transcript = {}
# Search gff exons intresection
for intersect_elem in genes+bed:
if intersect_elem.fields[2]=="exon":
exon = dicoNiourk["db_gff"][intersect_elem.attrs["ID"]]
# retrieve correspunding transcript
for rna in dicoNiourk["db_gff"].parents(exon, featuretype='mRNA', order_by='start'):
try: dico_intersect_transcript[rna]+=1
except: dico_intersect_transcript[rna] = 1
#***** FILTER transcript which all coding exons in target *****#
for rna in dico_intersect_transcript:
# retrieve parent gene
gene = list(dicoNiourk["db_gff"].parents(rna, featuretype='gene', order_by='start'))[0]
cds_start = list(dicoNiourk["db_gff"].children(rna, featuretype='CDS', order_by='start'))[0].start
cds_end = list(dicoNiourk["db_gff"].children(rna, featuretype='CDS', order_by='start'))[-1].end
# Count coding exon
nb_coding_exons = 0
for exon in dicoNiourk["db_gff"].children(rna, featuretype='exon', order_by='start'):
if exon.end>cds_start and exon.start<cds_end: nb_coding_exons+=1
# Filtre transcripts and genes
if dico_intersect_transcript[rna]>=nb_coding_exons:
dicoNiourk["target_transcript"][rna.attributes["Name"][0]] = rna.id
for gene in dicoNiourk["db_gff"].parents(rna, featuretype='gene', order_by='start'): dicoNiourk["target_gene"][gene.attributes["Name"][0]] = gene.id
dicoNiourk["spinner"].stop()
printcolor(" • "+str(len(dicoNiourk["target_gene"]))+"genes/"+str(len(dicoNiourk["target_transcript"]))+"rnas extracted\n","0",dicoNiourk["color"]["light1"],None,dicoNiourk["color"]["bool"])
cleanup(remove_all=True) # delete created temp file
def Jaccard_stats(bed_fname1, bed_fname2, genome):
"""Compute Jaccard index.
Parameters
----------
bed_fname1 : string
Name of file with CNV calls from experiment 1 in BED format.
bed_fname2 : string
Name of file with CNV calls from experiment 2 in BED format.
genome : string
Name of genome file.
Returns
-------
jacc_idx : float
Jaccard index.
"""
exp1 = pybedtools.BedTool(bed_fname1).merge()
exp2 = pybedtools.BedTool(bed_fname2).merge()
res = exp1.jaccard(exp2, sorted=True, g=genome)
pybedtools.cleanup(remove_all=True)
jacc_idx = res['jaccard']
return jacc_idx
def MultiThreadRun(index, iboolDict, args, kwargs):
if iboolDict['bam']:
tempFile = tempfile.NamedTemporaryFile(suffix='.tmp',
prefix='pybedtools.tempfile',
dir=args.temp,
delete=True)
if iboolDict['both']:
peakBed = pybedtools.BedTool(args.bed[index]).sort()
bamFile = args.bam[index]
inputBedDict = BamToBed(bamFile, peakBed, tempFile.name, args)
elif iboolDict['bed']:
inputBedDict = RebuildBed(args.bed[index], args.method, args.extend)
else:
peakBed = None
bamFile = args.bam[index]
inputBedDict = BamToBed(bamFile, peakBed, tempFile.name, args)
## retrieve bin-value relationships
sampleName = args.name[index]
binValDict = RunMetagene(inputBedDict, args, kwargs)
## Deletes all temp files from the current session
pybedtools.cleanup(verbose=False, remove_all=False)
if iboolDict['bam']:
tempFile.close()
return [sampleName, binValDict]
def parallel_generate_sc_intervals(bams, chromosomes, skip_bed, workdir, num_threads=1,
min_avg_base_qual=SC_MIN_AVG_BASE_QUAL,
min_mapq=SC_MIN_MAPQ, min_soft_clip=SC_MIN_SOFT_CLIP,
pad=SC_PAD,
min_support_ins=MIN_SUPPORT_INS, min_support_frac_ins=MIN_SUPPORT_FRAC_INS,
max_intervals=MAX_INTERVALS, max_nm=SC_MAX_NM, min_matches=SC_MIN_MATCHES,
isize_mean=ISIZE_MEAN, isize_sd=ISIZE_SD,
svs_to_softclip=SVS_SOFTCLIP_SUPPORTED,
overlap_ratio=OVERLAP_RATIO, mean_read_length=MEAN_READ_LENGTH,
mean_read_coverage=MEAN_READ_COVERAGE, min_ins_cov_frac=MIN_INS_COVERAGE_FRAC,
max_ins_cov_frac=MAX_INS_COVERAGE_FRAC):
func_logger = logging.getLogger(
"%s-%s" % (parallel_generate_sc_intervals.__name__, multiprocessing.current_process()))
if not os.path.isdir(workdir):
func_logger.info("Creating directory %s" % workdir)
os.makedirs(workdir)
if not chromosomes:
func_logger.info("Chromosome list unspecified. Inferring from the BAMs")
for bam in bams:
bamfile = pysam.Samfile(bam, "rb")
chromosomes += list(bamfile.references)
bamfile.close()
chromosomes = sorted(list(set(chromosomes)))
func_logger.info("Chromosome list inferred as %s" % (str(chromosomes)))
if not chromosomes:
func_logger.error("Chromosome list empty")
return None
merge_max_dist = -int(1 * pad)
func_logger.info("SVs to soft-clip: %s" % (svs_to_softclip))
pool = multiprocessing.Pool(num_threads)
bed_files = []
for index, (bam, chromosome) in enumerate(itertools.product(bams, chromosomes)):
process_workdir = os.path.join(workdir, str(index))
if not os.path.isdir(process_workdir):
os.makedirs(process_workdir)
args_list = [bam, chromosome, process_workdir]
kwargs_dict = {"min_avg_base_qual": min_avg_base_qual, "min_mapq": min_mapq, "min_soft_clip": min_soft_clip,
"pad": pad, "min_support_ins": min_support_ins,
"min_support_frac_ins": min_support_frac_ins, "max_nm": max_nm, "min_matches": min_matches,
"isize_mean": isize_mean, "isize_sd": isize_sd, "svs_to_softclip": svs_to_softclip,
"merge_max_dist": merge_max_dist, "mean_read_length": mean_read_length,
"mean_read_coverage": mean_read_coverage, "min_ins_cov_frac": min_ins_cov_frac,
"max_ins_cov_frac": max_ins_cov_frac}
pool.apply_async(generate_sc_intervals, args=args_list, kwds=kwargs_dict,
callback=partial(generate_sc_intervals_callback, result_list=bed_files))
pool.close()
pool.join()
# Remove empty BED files, which can cause merging issues with pybedtools
bed_files = [bed_file for bed_file in bed_files if os.path.exists(bed_file) and os.path.getsize(bed_file) > 0]
func_logger.info("Following BED files will be merged: %s" % (str(bed_files)))
if not bed_files:
func_logger.warn("No intervals generated")
return None
pybedtools.set_tempdir(workdir)
bedtool = pybedtools.BedTool(bed_files[0])
for bed_file in bed_files[1:]:
bedtool = bedtool.cat(pybedtools.BedTool(bed_file), postmerge=False)
bedtool = bedtool.sort().moveto(os.path.join(workdir, "all_intervals.bed"))
func_logger.info("Selecting the top %d intervals based on normalized read support" % max_intervals)
top_intervals_all_cols_file = os.path.join(workdir, "top_intervals_all_cols.bed")
if bedtool.count() <= max_intervals:
bedtool = bedtool.saveas(top_intervals_all_cols_file)
else:
# Sample the top intervals
top_fraction_cutoff = \
sorted([find_coverage_frac(interval.fields[7], interval.fields[6]) for interval in bedtool], reverse=True)[
max_intervals - 1]
func_logger.info("Normalized read support threshold: %0.3f" % top_fraction_cutoff)
bedtool = bedtool.filter(lambda x: find_coverage_frac(x.fields[7],x.fields[6]) >= top_fraction_cutoff).moveto(
top_intervals_all_cols_file)
# Filter out the extra column added to simplify life later on
bedtool = bedtool.cut(xrange(6)).saveas(os.path.join(workdir, "top_intervals.bed"))
interval_bed = os.path.join(workdir, "intervals.bed")
if skip_bed:
skip_bedtool = pybedtools.BedTool(skip_bed)
sc_skip_bed = os.path.join(workdir, "sc_metasv.bed")
if "INS" in svs_to_softclip:
skip_bedtool = skip_bedtool.each(partial(add_INS_padding,pad=pad)).saveas(sc_skip_bed)
nonsc_skip_bed = os.path.join(workdir, "non_sc_metasv.bed")
func_logger.info(
"Merging %d features with %d features from %s" % (bedtool.count(), skip_bedtool.count(), skip_bed))
nonsc_skip_bedtool = skip_bedtool.filter(lambda x: x.name.split(',')[1] not in svs_to_softclip).saveas(nonsc_skip_bed)
sc_skip_bedtool = skip_bedtool.filter(lambda x: x.name.split(',')[1] in svs_to_softclip).saveas(interval_bed)
if len(sc_skip_bedtool) > 0:
bedtool = bedtool.cat(sc_skip_bedtool, postmerge=False)
bedtool = bedtool.sort()
bedtool = merge_for_each_sv(bedtool,c="4",o="collapse",svs_to_softclip=svs_to_softclip,
overlap_ratio=overlap_ratio, reciprocal_for_2bp=True, d=merge_max_dist)
bedtool = bedtool.each(partial(fix_merged_fields,inter_tools=True)).sort().moveto(interval_bed)
if len(nonsc_skip_bedtool) > 0:
bedtool = bedtool.cat(nonsc_skip_bedtool, postmerge=False).sort().moveto(interval_bed)
func_logger.info("After merging with %s %d features" % (skip_bed, bedtool.count()))
else:
bedtool = bedtool.saveas(interval_bed)
pybedtools.cleanup(remove_all=True)
return bedtool.fn
def main():
opt_parser = ArgumentParser(
description="Annotate genomic intervals with RefSeq or Ensembl databases.",
prog="region_analysis.py")
opt_parser.add_argument('-i', '--input', action='store',
help='Input region file must assume the first 3 columns contain (chr, start, end)')
opt_parser.add_argument('-d', '--database', action='store',
help='Choose database: refseq(default) or ensembl',
default='refseq')
opt_parser.add_argument('-r', '--rhead', action='store_true',
help='Whether the input file contains column header', default=False)
opt_parser.add_argument('-g', '--genome', action='store',
help='Choose genome: mm10(default)',
default='mm10')
opt_parser.add_argument('-rv', '--RAver', action='store',
help='Version of Region Analysis databases, default is the newest',
default=None)
opt_parser.add_argument('-v', '--version', action='store_true',
help='Version of Region_Analysis package')
options = opt_parser.parse_args()
if options.version:
sys.stdout.write("Region_Analysis Version: %s\n" %
regionanalysis.packageinfo.__version__)
opt_parser.print_help()
return 0
module_dir = os.path.dirname(os.path.realpath(regionanalysis.__file__))
# db_path = os.path.join(module_dir, "database/")
input_file_name = options.input
anno_db = options.database
rhead = options.rhead
genome = options.genome
rv = options.RAver
if (input_file_name is None) or (len(input_file_name) == 0):
opt_parser.error(
"Please assign proper input file!\n--help will show the help information.")
genome_info = regionanalysis.annotationdb.getAnnoDBPath(
module_dir, genome, anno_db, rv)
try:
if genome_info is None:
raise SystemExit
db_path = genome_info["path"]
except SystemExit:
if rv is None:
sys.stderr.write("%s not in the genome database!\n" % genome)
return 1
else:
sys.stderr.write("%s, RAver %s not in the genome database!\n" %
(genome, rv))
return 1
# create a tmp bed file with index column.
in_f = file(input_file_name)
# filter the comment lines
input_filtered = [
line for line in in_f if not (line.lstrip().startswith("#") or len(line.strip())==0)]
# if there is header, store it and remove it from the query BED.
if rhead:
headlineL = input_filtered[0].strip().split("\t")
del input_filtered[0]
# add index column to the bed lines
input_indexed = ['%s\t%d\n' % (line.strip(), i)
for i, line in enumerate(input_filtered)]
in_f.close()
# read all annotations into a dictionary, for the further output.
anno_bed = os.path.join(
db_path, genome + "." + anno_db + ".biotype_region_ext.bed")
try:
if not os.path.exists(anno_bed):
raise SystemExit
except SystemExit:
sys.stderr.write("%s genome not properly installed!\n" % genome)
return 1
# use saveas() to convert the BedTool objects to file-based objects,
# so they could be used multiple times.
# When debug, we may use saveas("tss.tmp"), and the output of bedtools
# could be saved.
pybedtools.set_tempdir("./")
anno = pybedtools.BedTool(anno_bed).saveas()
gd = pybedtools.BedTool(
os.path.join(db_path, genome + "_geneDesert.bed")).saveas()
pc = pybedtools.BedTool(
os.path.join(db_path, genome + "_pericentromere.bed")).saveas()
st = pybedtools.BedTool(
os.path.join(db_path, genome + "_subtelomere.bed")).saveas()
# load the input intervals to be annotated.
try:
input_bed = pybedtools.BedTool(
"".join(input_indexed), from_string=True).saveas()
except:
sys.stderr.write("Error in input file! Please check the format!")
return 1
list_input = [x.fields[:] for x in input_bed]
col_no_input = input_bed.field_count()
# get the midpoint of the intervals.
# there is a bug in midpoint function of pybedtools 0.6.3, so here an alternative function was used.
# input_bed_mid = input_bed.each(pybedtools.featurefuncs.midpoint).saveas()
input_bed_mid = pybedtools.BedTool(
"".join([regionanalysis.analysis.midpoint(x) for x in input_indexed]), from_string=True).saveas()
# intersectBed with annotations.
input_GB = input_bed_mid.intersect(anno, wao=True).saveas()
list_GB = [x.fields[:] for x in input_GB]
input_gd = input_bed_mid.intersect(gd, c=True, f=0.5).saveas()
list_gd = [x.fields[col_no_input + 0] for x in input_gd]
input_pc = input_bed_mid.intersect(pc, c=True, f=0.5).saveas()
list_pc = [x.fields[col_no_input + 0] for x in input_pc]
input_st = input_bed_mid.intersect(st, c=True, f=0.5).saveas()
list_st = [x.fields[col_no_input + 0] for x in input_st]
# groupby the intersectBed results based on the index column.
input_idx = key = lambda s: s[col_no_input - 1]
GB_dict = {}
for key, GB_hits in groupby(list_GB, key=input_idx):
GB_dict[key] = list(v for v in GB_hits)
output_file_best = file(input_file_name + ".annotated", "w")
output_file = file(input_file_name + ".full.annotated", "w")
output_file_json = file(input_file_name + ".full.annotated.json", "w")
# Output the header.
if rhead:
output_file.write("\t".join(
headlineL + ["GName", "TName", "Strand", "TSS", "TES", "Feature", "D2TSS", "Biotype", "GeneSymbol"]) + "\n")
output_file_best.write("\t".join(
headlineL + ["GName", "TName", "Strand", "TSS", "TES", "Feature", "D2TSS", "Biotype", "GeneSymbol"]) + "\n")
# write to the output: input.bed.annotated, input.bed.full.annotated.
json_dict = {}
for i in range(0, len(input_bed)):
output_lineL = list_input[i][:-1] # original input line
json_dict[str(i)] = {}
json_dict[str(i)]["query_interval"] = output_lineL
formatted, best_hit = regionanalysis.analysis.getBestHit(
anno_db, col_no_input, GB_dict[str(i)], list_gd[i], list_st[i], list_pc[i])
output_file_best.write("\t".join(output_lineL + best_hit) + "\n")
json_dict[str(i)]["best_hit"] = best_hit
for j in formatted:
output_file.write("\t".join(output_lineL + j) + "\n")
json_dict[str(i)]["all_hits"] = formatted
output_file_best.close()
output_file.close()
json.dump(json_dict, output_file_json, sort_keys=True, indent=2)
output_file_json.close()
pybedtools.cleanup()
return 0
def teardown():
pybedtools.cleanup(remove_all=True)
def main():
parser=OptionParser()
parser.add_option('-i', '--inputBAM', dest='inputBAM',
help='Aligned BAM from zUMI filtering+mapping steps with cell barcode and umi barcode correction.')
parser.add_option('-c', '--config', dest='config',
help='A configuration file for required files and parameters.')
parser.add_option('-e', '--experiment', dest='experiment',
help='Experiment name.')
parser.add_option('-o', '--outputDir', dest='outputDir', default='ss3rnaseq',
help='The output directory for the experiment.')
parser.add_option('-p', '--process', dest='process', default=8,
help='The number of processes for parallel computing.')
parser.add_option('-s', '--species', dest='species', default='hg38',
help='The species under study.')
parser.add_option("-P", "--Preprocess", action="store_true", dest='preprocess',
help="Preprocess the input BAM for downstream analysis.")
parser.add_option("-Q", "--Quantification", action="store_true", dest='quantification',
help="Run isoform reconstruction and quantification.")
(op, args) = parser.parse_args()
inputBAM = op.inputBAM
conf = op.config
experiment = op.experiment
outdir = op.outputDir
nprocess = int(op.process)
if op.species == 'hg38' or op.species == 'hg19': species = 'hsa'
elif op.species == 'mm9' or op.species == 'mm10': species = 'mmu'
config = configparser.ConfigParser()
config.read(conf)
conf_data = config._sections
if not os.path.exists(outdir): os.makedirs(outdir)
if not os.path.exists('%s/%s' %(outdir, species)): os.makedirs('%s/%s' %(outdir, species))
if not os.path.exists('%s/%s/%s' %(outdir, species, experiment)): os.makedirs('%s/%s/%s' %(outdir, species, experiment))
umi_file_prefix = 'UBfix.sort.bam'
if op.preprocess:
print('Preprocessing on input BAM ...')
preDir = os.path.join(outdir, species, experiment, "preprocess")
if not os.path.exists(preDir): os.makedirs(preDir)
cmd = 'samtools sort -m %s -O bam -@ %s -o %s/%s %s' %(conf_data['preprocess']['memory'], nprocess, preDir, re.sub(umi_file_prefix,'UBfix.coordinateSorted.bam',os.path.basename(inputBAM)), inputBAM)
os.system(cmd)
cmd = 'samtools view -b -q 255 %s/%s > %s/%s' %(preDir, re.sub(umi_file_prefix,'UBfix.coordinateSorted.bam',os.path.basename(inputBAM)), preDir, re.sub(umi_file_prefix,'UBfix.coordinateSorted_unique.bam',os.path.basename(inputBAM)))
os.system(cmd)
cmd = 'samtools view -h %s/%s | awk \'$12 != "NH:i:1"\' | samtools view -bS - > %s/%s' %(preDir, re.sub(umi_file_prefix,'UBfix.coordinateSorted.bam',os.path.basename(inputBAM)), preDir, re.sub(umi_file_prefix,'UBfix.coordinateSorted_multi.bam',os.path.basename(inputBAM)))
os.system(cmd)
os.system('samtools index %s/%s' %(preDir, re.sub(umi_file_prefix,'UBfix.coordinateSorted_unique.bam',os.path.basename(inputBAM))))
os.system('samtools index %s/%s' %(preDir, re.sub(umi_file_prefix,'UBfix.coordinateSorted_multi.bam',os.path.basename(inputBAM))))
if op.quantification:
print('Collect informative reads per gene...')
in_bam_uniq = '%s/%s' %(os.path.join(outdir, species, experiment, "preprocess"), re.sub(umi_file_prefix,'UBfix.coordinateSorted_unique.bam',os.path.basename(inputBAM)))
in_bam_multi = '%s/%s' %(os.path.join(outdir, species, experiment, "preprocess"), re.sub(umi_file_prefix,'UBfix.coordinateSorted_multi.bam',os.path.basename(inputBAM)))
out_path = os.path.join(outdir, species, experiment, "expression_%s" %(conf_data['annotation']['gtf_source']))
if not os.path.exists(out_path): os.makedirs(out_path)
sys_tmp_dir = '%s/.tmp' %(out_path)
if not os.path.exists(sys_tmp_dir): os.makedirs(sys_tmp_dir)
pybedtools.set_tempdir(sys_tmp_dir)
pybedtools.cleanup(remove_all=True)
fetch_gene_reads(in_bam_uniq, in_bam_multi, conf_data, op.species, out_path)
print('Build reference isoforms...')
ref = build_reference(conf_data, out_path)
print('Start isoform reconstruction and quantification...')
get_isoforms(conf_data, out_path, ref)
def generate_sc_intervals(bam, chromosome, workdir, min_avg_base_qual=SC_MIN_AVG_BASE_QUAL, min_mapq=SC_MIN_MAPQ, min_soft_clip=SC_MIN_SOFT_CLIP,
max_soft_clip=SC_MAX_SOFT_CLIP, pad=SC_PAD, min_support=MIN_SUPPORT, max_isize=1000000000,
min_support_frac=MIN_SUPPORT_FRAC):
func_logger = logging.getLogger("%s-%s" % (generate_sc_intervals.__name__, multiprocessing.current_process()))
if not os.path.isdir(workdir):
func_logger.error("Working directory %s doesn't exist" % workdir)
return None
func_logger.info("Generating candidate insertion intervals from %s for chromsome %s" % (bam, chromosome))
pybedtools.set_tempdir(workdir)
unmerged_intervals = []
start_time = time.time()
try:
sam_file = pysam.Samfile(bam, "rb")
for aln in sam_file.fetch(reference=chromosome):
if abs(aln.tlen) > max_isize:
continue
if not is_good_candidate(aln, min_avg_base_qual=min_avg_base_qual, min_mapq=min_mapq,
min_soft_clip=min_soft_clip, max_soft_clip=max_soft_clip): continue
interval = get_interval(aln, pad=pad)
soft_clip_location = sum(interval) / 2
strand = "-" if aln.is_reverse else "+"
name = "%d,%s" % (soft_clip_location, strand)
unmerged_intervals.append(
pybedtools.Interval(chromosome, interval[0], interval[1], name=name, score="1", strand=strand))
if not unmerged_intervals:
sam_file.close()
func_logger.warn("No intervals generated")
return None
unmerged_bed = os.path.join(workdir, "unmerged.bed")
bedtool = pybedtools.BedTool(unmerged_intervals).sort().moveto(unmerged_bed)
func_logger.info("%d candidate reads" % (bedtool.count()))
merged_bed = os.path.join(workdir, "merged.bed")
bedtool = bedtool.merge(c="4,5", o="collapse,sum", d=-500).moveto(merged_bed)
func_logger.info("%d merged intervals" % (bedtool.count()))
filtered_bed = os.path.join(workdir, "filtered_merged.bed")
bedtool = bedtool.filter(lambda x: int(x.score) >= min_support).each(partial(merged_interval_features, bam_handle=sam_file)).moveto(
filtered_bed)
func_logger.info("%d filtered intervals" % (bedtool.count()))
# Now filter based on coverage
coverage_filtered_bed = os.path.join(workdir, "coverage_filtered_merged.bed")
bedtool = bedtool.filter(lambda x: float(x.fields[6]) * min_support_frac <= float(x.score)).moveto(coverage_filtered_bed)
func_logger.info("%d coverage filtered intervals" % (bedtool.count()))
sam_file.close()
except Exception as e:
func_logger.error('Caught exception in worker thread')
# This prints the type, value, and stack trace of the
# current exception being handled.
traceback.print_exc()
print()
raise e
pybedtools.cleanup(remove_all=True)
func_logger.info("Generated intervals in %g seconds" % (time.time() - start_time))
return coverage_filtered_bed
import pybedtools
pybedtools.set_tempdir('.')
a = pybedtools.bedtool('a.bed')
a.intersect(a)
pybedtools.cleanup(verbose=True)
def teardown_module():
if os.path.exists(test_tempdir):
os.system('rm -r %s' % test_tempdir)
pybedtools.cleanup()
def main():
# READING ARGUMENTS
parser = argparse.ArgumentParser(
description='Arguments for Activity from Contacts')
parser.add_argument('--enhancers',
type=str,
help='Enhancer BedFile with the activity reported')
parser.add_argument('--tss', type=str, help='TSS BedFile')
parser.add_argument('--promoters',
type=str,
help='activity for promoter regions')
parser.add_argument(
'--hic',
type=str,
help='Hi-C regularized counts',
default='../data/external/K562_filteredRegularized_contactCount.tsv')
parser.add_argument('--bincoord',
type=str,
help='Coordinates for bins',
default='../data/external/K562_filteredBins.bed')
parser.add_argument('--chain',
type=str,
help='Chain file for coordinate liftover',
default='../data/external/hg38ToHg19.over.chain')
parser.add_argument('--chromap',
type=str,
help='Chromosome mappping file',
default='../data/external/GRCh37_UCSC2ensembl.txt')
parser.add_argument('-p',
type=int,
help='Cores to use during processing',
default=1)
parser.add_argument('--scaler',
type=int,
help='Values to multiply for re-scaling',
default=100)
parser.add_argument('--closer',
type=int,
help='Cutoff for enhancer vecinity',
default=5_000_000)
parser.add_argument('--gamma',
type=int,
help='Gamma powerlaw parameter',
default=-0.7764771175681618)
parser.add_argument('--scaleparam',
type=int,
help='Scale powerlaw parameter',
default=10.787505424121239)
parser.add_argument('--mindist',
type=int,
help='Minimum distance for powerlaw',
default=1_000_000)
parser.add_argument('--promlength',
type=int,
help='Promoter length',
default=500)
parser.add_argument('--cutoff',
type=int,
help='Cutoff probability',
default=0)
parser.add_argument('--outfile', type=str, help='Output file name')
args = parser.parse_args()
# ASSIGNING ARGUMENTS TO VARIABLES
enhancer_bedfile = args.enhancers
tss_bedfile = args.tss
promoters_bedfile = args.promoters
hic_file = args.hic
num_cores = args.p
chromosome_mapping = args.chromap
coord_conversion = args.chain
filtered_coords = args.bincoord
SCALER_VALUE = args.scaler
CLOSER_CUTOFF = args.closer
SCALE_PL = args.scaleparam
GAMMA_PL = args.gamma
DISTMIN_PL = args.mindist
PROMOTER_LEN = args.promlength
CUTOFF_POSITIVE = args.cutoff
output = args.outfile
'''
Reading file from input
'''
print('Reading files...')
tss_df = pd.read_csv(
tss_bedfile,
sep='\t',
header=None,
names=['chr', 'start', 'end', 'gene_id', 'score', 'strand'])
promoters_df = pd.read_csv(promoters_bedfile, sep='\t')
enhancer_df = pd.read_csv(enhancer_bedfile, sep='\t')
# For some reason, the indexing is faster when read from csv.
hic_counts = pd.read_csv(hic_file, sep='\t')
filtered_bins = pybedtools.BedTool(filtered_coords)
lift_file = LiftOver(coord_conversion)
chromap_file = pd.read_csv(chromosome_mapping,
sep='\t',
header=None,
names=['chromosome', 'ensembl_chr'],
index_col='chromosome')
try:
enhancer_df = enhancer_process(enhancer_info=enhancer_df,
filtered_bincoord=filtered_bins,
coordinate_liftover=lift_file,
chromosome_relation=chromap_file)
tss_df = tss_process(tss_info=tss_df,
filtered_bincoord=filtered_bins,
coordinate_liftover=lift_file,
chromosome_relation=chromap_file)
tss_enhancer_intersected = intersect_elements(
tss_intersect=tss_df,
enhancer_intersect=enhancer_df,
closer_value=CLOSER_CUTOFF)
rescaled_data = rescale_rows(processed_df=tss_df,
s_value=SCALER_VALUE,
regularized_counts=hic_counts,
num_p=num_cores)
denom_dict, tss_enhancer_newinf = calculate_denominator(
enhancer_tss_info=tss_enhancer_intersected,
promoter_info=promoters_df,
scaled_counts=rescaled_data,
gamma_powerlaw=GAMMA_PL,
scale_powerlaw=SCALE_PL,
s_value=SCALER_VALUE,
distance_min=DISTMIN_PL,
promoter_length=PROMOTER_LEN,
num_p=num_cores)
calculate_abc(enhancer_tss_info=tss_enhancer_newinf,
denominator_values=denom_dict,
num_p=num_cores,
positive_cutoff=CUTOFF_POSITIVE,
output_name=output)
finally:
pybedtools.cleanup()
def teardown_module():
if os.path.exists(tempdir):
os.system("rm -r %s" % tempdir)
pybedtools.cleanup()
def main():
"""
Third quick example from the documentation -- count reads introns and
exons, in parallel
"""
ap = argparse.ArgumentParser(prog=os.path.basename(sys.argv[0]),
usage=__doc__)
ap.add_argument('--gff',
required=True,
help='GFF or GTF file containing annotations')
ap.add_argument('--bam',
required=True,
help='BAM file containing reads to be counted')
ap.add_argument('--stranded',
action='store_true',
help='Use strand-specific merging and overlap. '
'Default is to ignore strand')
ap.add_argument('--no-parallel',
dest='noparallel',
action='store_true',
help='Disables parallel computation')
ap.add_argument('-o',
'--output',
help='Optional file to which results will be written; '
'default is stdout')
ap.add_argument('-v',
'--verbose',
action='store_true',
help='Verbose (goes to stderr)')
args = ap.parse_args()
gff = args.gff
bam = args.bam
stranded = args.stranded
parallel = not args.noparallel
# Some GFF files have invalid entries -- like chromosomes with negative
# coords or features of length = 0. This line removes them and saves the
# result in a tempfile
g = pybedtools.BedTool(gff).remove_invalid().saveas()
# Decide which version of map to use. If parallel, we only need 3
# processes.
pool = multiprocessing.Pool(processes=3)
# Get separate files for introns and exons in parallel (if specified)
featuretypes = ('intron', 'exon')
introns, exons = pool.map(subset_featuretypes, featuretypes)
# Perform some genome algebra to get unique and shared regions
exon_only = exons.subtract(introns).merge().remove_invalid().saveas()
intron_only = introns.subtract(exons).merge().remove_invalid().saveas()
intron_and_exon = exons\
.intersect(introns).merge().remove_invalid().saveas()
# Do intersections with BAM file in parallel
features = (exon_only, intron_only, intron_and_exon)
results = pool.map(count_reads_in_features, features)
labels = (' exon only:', ' intron only:', 'intron and exon:')
for label, reads in zip(labels, results):
print('%s %s' % (label, reads))
pybedtools.cleanup(verbose=False)
bed=True,
stream=True).count()
# Decide which version of map to use. If parallel, we only need 3
# processes.
pool = multiprocessing.Pool(processes=3)
# Get separate files for introns and exons in parallel (if specified)
featuretypes = ('intron', 'exon')
introns, exons = pool.map(subset_featuretypes, featuretypes)
# Perform some genome algebra to get unique and shared regions
exon_only = exons.subtract(introns).merge().remove_invalid().saveas()
intron_only = introns.subtract(exons).merge().remove_invalid().saveas()
intron_and_exon = exons.intersect(introns).merge().remove_invalid().saveas()
# Do intersections with BAM file in parallel
features = (exon_only, intron_only, intron_and_exon)
results = pool.map(count_reads_in_features, features)
labels = (' exon only:',
' intron only:',
'intron and exon:')
for label, reads in zip(labels, results):
print '%s %s' % (label, reads)
pybedtools.cleanup(verbose=False)
def mergeVCFfiles(chrom, A, B, file1, file2):
## Write headers to a file. Needed later for creating a correct VCF of the intersected files.
header1 = gzip.open((file1+chrom+'.vcf.gz'), 'r')
header2 = gzip.open((file2+chrom+'.vcf.gz'), 'r')
headerFile = (path+'HEADER_'+A+'_'+B+'_.vcf.gz')
f = gzip.open(headerFile, 'ab')
for line in header1:
if line[0:2] != '##':
break;
f.write(line)
header1.close()
for line in header2:
if line[0:2] != '##':
break;
f.write(line)
header1.close()
f.write('#CHROM\tPOS\tID\tREF\tALT\tQUAL\tFILTER\tINFO');
f.close()
## Intersects files -LOJ
a = BedTool((file1+chrom+'.vcf.gz'))
b = BedTool((file2+chrom+'.vcf.gz'))
a_b = a.intersect(b, header=True,loj=True)
ab = a_b.saveas((path+'LOJ_'+A+'_'+B+'_chr'+chrom+'.vcf.gz'))
print (ab.fn)
cleanup(remove_all=True)
## Intersects files -V
a = BedTool((file1+chrom+'.vcf.gz'))
b = BedTool((file2+chrom+'.vcf.gz'))
b_a = b.intersect(a, header=True, v=True)
ba = b_a.saveas((path+'V_'+A+'_'+B+'_chr'+chrom+'.vcf.gz'))
print (ba.fn)
cleanup(remove_all=True)
## CAT LOJ file and -v File
LOJ = path+'LOJ_'+A+'_'+B+'_chr'+chrom+'.vcf.gz'
V = path+'V_'+A+'_'+B+'_chr'+chrom+'.vcf.gz'
out = path+'concated_'+A+'_'+B+'_chr'+chrom+'.vcf.gz'
os.system(("vcf-concat "+LOJ+" "+V+" | gzip -c > "+out))
#print "ok"
## correct to vcf, merge equal type samples
out2 = 'stage2/unsorted_'+A+'_'+B+'_chr'+chrom+'.vcf.gz'
import correctToVCF
goVCF = correctToVCF.CorrectToVCF()
goVCF.writeHeader(headerFile, out2)
goVCF.correctFile(out, out2)
## sort the VCF file
os.system(("vcf-sort "+out2+"| gzip -c > "+("germlineVCF/"+A+'_'+B+'_chr'+chrom+'.vcf.gz')))
cleanup(remove_all=True)
def teardown():
pybedtools.cleanup(remove_all=True)
# special case of deletions - if the deleted area ("ispan") is a TE, more likely a TE insertion in the reference
possible_te_reference_insertions = long_indel_intra_calls.pair_to_bed(tes, type="ispan", f=.75).saveas()
filtered_possible_te_reference_insertions = possible_te_reference_insertions.filter(bedpe_reciprocal_overlap_ispan_filter, 0.75).saveas()
print "POSSIBLE_TE_INSERTIONS_IN_REFERENCE\tALL\t" + str(len(filtered_possible_te_reference_insertions))
log.write("POSSIBLE_TE_INSERTIONS_IN_REFERENCE\tALL\t" + str(len(filtered_possible_te_reference_insertions)) + "\n")
save_output(master_out_bed, filtered_possible_te_reference_insertions, output_dir, "possible_te_reference_insertions", sample_name, "POSSIBLE_TE_INSERTIONS_IN_REFERENCE", seg_dups, cent_tel)
# deletions that match population variants
if common_deletions is not None:
common_deletions = long_indel_intra_calls.pair_to_bed(common_deletions, type="ispan", f=common_deletion_overlap_pct).saveas()
filtered_possible_common_deletions = common_deletions.filter(bedpe_reciprocal_overlap_ispan_filter, common_deletion_overlap_pct).saveas()
print "COMMON_DELETIONS\tALL\t" + str(len(filtered_possible_common_deletions))
log.write("COMMON_DELETIONS\tALL\t" + str(len(filtered_possible_common_deletions)) + "\n")
save_output(master_out_bed, filtered_possible_common_deletions, output_dir, "possible_common_deletions", sample_name, "COMMON_DELETIONS", seg_dups, cent_tel)
# insertions are shorter than the fragment size
short_indel_intra_calls = expected_orientation.filter(bedpe_lt_length_filter, insert_size).saveas()
print "INSERTIONS\tALL\t" + str(len(short_indel_intra_calls))
log.write("INSERTIONS\tALL\t" + str(len(short_indel_intra_calls)) + "\n")
save_output(master_out_bed, short_indel_intra_calls, output_dir, "insertions", sample_name, "INSERTIONS", seg_dups, cent_tel)
# inversions are what's left
unexpected_orientation = intra_calls.filter(expected_orientation_filter, matches=False).saveas()
print "INVERSION\tALL\t" + str(len(unexpected_orientation))
log.write("INVERSION\tALL\t" + str(len(unexpected_orientation)) + "\n")
save_output(master_out_bed, unexpected_orientation, output_dir, "inversions", sample_name, "INVERSIONS", seg_dups, cent_tel)
pybedtools.cleanup()
log.close()
def generate_sc_intervals(bam, chromosome, workdir, min_avg_base_qual=SC_MIN_AVG_BASE_QUAL, min_mapq=SC_MIN_MAPQ,
min_soft_clip=SC_MIN_SOFT_CLIP,
pad=SC_PAD, min_support_ins=MIN_SUPPORT_INS, max_considered_isize=1000000000,
min_support_frac_ins=MIN_SUPPORT_FRAC_INS, max_nm=SC_MAX_NM, min_matches=SC_MIN_MATCHES,
isize_mean=ISIZE_MEAN, isize_sd=ISIZE_SD, svs_to_softclip=SVS_SOFTCLIP_SUPPORTED,
overlap_ratio=OVERLAP_RATIO,merge_max_dist=-int(1*SC_PAD),
mean_read_length=MEAN_READ_LENGTH, mean_read_coverage=MEAN_READ_COVERAGE,
min_ins_cov_frac=MIN_INS_COVERAGE_FRAC, max_ins_cov_frac=MAX_INS_COVERAGE_FRAC,
num_sd = 2):
func_logger = logging.getLogger("%s-%s" % (generate_sc_intervals.__name__, multiprocessing.current_process()))
if not os.path.isdir(workdir):
func_logger.error("Working directory %s doesn't exist" % workdir)
return None
func_logger.info("Generating candidate intervals from %s for chromsome %s" % (bam, chromosome))
pybedtools.set_tempdir(workdir)
min_isize = isize_mean - num_sd * isize_sd
max_isize = isize_mean + num_sd * isize_sd
unmerged_intervals = []
start_time = time.time()
ignore_none = True
try:
sam_file = pysam.Samfile(bam, "rb")
for aln in sam_file.fetch(reference=str(chromosome)):
if abs(aln.tlen) > max_considered_isize:
continue
if not is_good_candidate(aln, min_avg_base_qual=min_avg_base_qual, min_mapq=min_mapq,
min_soft_clip=min_soft_clip, max_nm=max_nm,
min_matches=min_matches): continue
interval = get_interval(aln, pad=pad)
soft_clip_location = sum(interval) / 2
strand = "-" if aln.is_reverse else "+"
svtype = infer_svtype(aln, min_isize, max_isize)
if svtype == "CTX;INS":
# TODO : Should be fixed to handle CTX
svtype = "INS"
if svtype == "DUP;ITX":
# TODO : Should be fixed to handle ITX
svtype = "DUP"
soft_clip_tuple = find_softclip(aln)
if not soft_clip_tuple:
continue
soft_clip, dist_L_end, dist_R_end = soft_clip_tuple
other_bp = find_other_bp(aln,isize_mean, svtype, soft_clip, dist_L_end,
dist_R_end, soft_clip_location)
if other_bp is None: continue
name = "%d,%d,%s" % (soft_clip_location, other_bp, strand)
if ignore_none and svtype == "NONE":
continue
if svtype not in svs_to_softclip:
continue
unmerged_intervals.append(
pybedtools.Interval(chromosome, interval[0], interval[1], name=name, score="1", strand=strand, otherfields=[svtype]))
if not unmerged_intervals:
sam_file.close()
func_logger.warn("No intervals generated")
return None
unmerged_bed = os.path.join(workdir, "unmerged.bed")
bedtool = pybedtools.BedTool(unmerged_intervals).sort().moveto(unmerged_bed)
func_logger.info("%d candidate reads" % (bedtool.count()))
bedtool_lr={"L":bedtool.filter(lambda x: int(x.name.split(",")[0])<=int(x.name.split(",")[1])).sort(),
"R":bedtool.filter(lambda x: int(x.name.split(",")[0])>int(x.name.split(",")[1])).sort()}
bp_merged_intervals = []
for k_bt,bt in bedtool_lr.iteritems():
merged_bed = os.path.join(workdir, "merged_%s.bed"%k_bt)
m_bt=merge_for_each_sv(bt,c="4,5,6,7",o="collapse,sum,collapse,collapse",
svs_to_softclip=svs_to_softclip,d=merge_max_dist,
reciprocal_for_2bp=False, sv_type_field = [6,0])
m_bt = m_bt.moveto(merged_bed)
func_logger.info("%d merged intervals with left bp support" % (m_bt.count()))
# Check if the other break point also can be merged for the merged intervals (for 2bp SVs)
for interval in m_bt:
sv_type = interval.fields[6].split(',')[0]
if len(set(interval.fields[6].split(',')))!=1:
func_logger.warn("More than one svtypes: %s",(str(interval)))
if sv_type == "INS":
bp_merged_intervals.append(interval)
else:
name_fields_0 = interval.name.split(',')
other_bps = map(lambda x:int(name_fields_0[3*x+1]), range(len(name_fields_0)/3))
if (min(other_bps)+2*pad-max(other_bps))>(-merge_max_dist):
bp_merged_intervals.append(interval)
continue
other_bp_bedtool=bt.filter(lambda x: x.name in interval.name and x.fields[6]==sv_type).each(partial(generate_other_bp_interval,pad=pad)).sort().merge(c="4,5,6,7", o="collapse,sum,collapse,collapse", d=merge_max_dist)
if len(other_bp_bedtool)==1:
bp_merged_intervals.append(interval)
else:
for intvl in other_bp_bedtool:
bp_merged_intervals.extend(bt.filter(lambda x: x.name in intvl.name and x.fields[6]==sv_type).sort().merge(c="4,5,6,7", o="collapse,sum,collapse,collapse", d=merge_max_dist))
bp_merged_bed = os.path.join(workdir, "bp_merged.bed")
bedtool=pybedtools.BedTool(bp_merged_intervals).each(partial(add_other_bp_fields,pad=pad)).sort().moveto(bp_merged_bed)
func_logger.info("%d BP merged intervals" % (bedtool.count()))
filtered_bed = os.path.join(workdir, "filtered.bed")
bedtool = bedtool.filter(lambda x: int(x.score) >= MIN_SUPPORT_SC_ONLY).each(
partial(merged_interval_features, bam_handle=sam_file)).moveto(
filtered_bed)
func_logger.info("%d filtered intervals" % (bedtool.count()))
# Now filter based on coverage
coverage_filtered_bed = os.path.join(workdir, "coverage_filtered.bed")
bedtool = bedtool.filter(lambda x: (x.fields[3].split(",")[1]!="INS" or
((min_ins_cov_frac*mean_read_coverage)<=(float(x.fields[6])/abs(x.start-x.end+1)*mean_read_length)<=(max_ins_cov_frac*mean_read_coverage)))).moveto(coverage_filtered_bed)
func_logger.info("%d coverage filtered intervals" % (bedtool.count()))
thr_sv={"INS":min_support_frac_ins, "INV":MIN_SUPPORT_FRAC_INV,
"DEL":MIN_SUPPORT_FRAC_DEL, "DUP": MIN_SUPPORT_FRAC_DUP}
# Add number of neighbouring reads that support SC
bedtool=bedtool.each(partial(add_neighbour_support,bam_handle=sam_file, min_mapq=min_mapq,
min_soft_clip=min_soft_clip, max_nm=max_nm, min_matches=min_matches,
skip_soft_clip=False, isize_mean=isize_mean, min_isize=min_isize, max_isize=max_isize)).sort().moveto(coverage_filtered_bed)
neigh_coverage_filtered_bed = os.path.join(workdir, "neigh_filtered.bed")
bedtool = bedtool.each(partial(filter_low_frac_support,thr_sv=thr_sv)).each(
partial(filter_low_neigh_read_support_INS,min_support_ins=min_support_ins)).sort().moveto(
neigh_coverage_filtered_bed)
func_logger.info("%d neighbour support filtered intervals" % (bedtool.count()))
# For 2bp SVs, the interval will be the cover of two intervals on the BP
full_filtered_bed = os.path.join(workdir, "full_neigh_filtered.bed")
bedtool = bedtool.each(partial(get_full_interval,pad=pad)).sort().moveto(full_filtered_bed)
func_logger.info("%d full filtered intervals" % (bedtool.count()))
# Now merge on full intervals
merged_full_filtered_bed = os.path.join(workdir, "merged_full.bed")
if bedtool.count()>0:
bedtool=merge_for_each_sv(bedtool,c="4,5,6,7,9",o="collapse,collapse,collapse,collapse,collapse",
svs_to_softclip=svs_to_softclip,
overlap_ratio=overlap_ratio,
reciprocal_for_2bp=True,
sv_type_field = [3,1], d=merge_max_dist)
bedtool = bedtool.each(partial(fix_merged_fields,inter_tools=False)).each(partial(fine_tune_bps,pad=pad))
bedtool = bedtool.filter(lambda x: x.score != "-1").sort().moveto(merged_full_filtered_bed)
func_logger.info("%d merged full intervals" % (bedtool.count()))
sam_file.close()
except Exception as e:
func_logger.error('Caught exception in worker thread')
# This prints the type, value, and stack trace of the
# current exception being handled.
traceback.print_exc()
print()
raise e
pybedtools.cleanup(remove_all=True)
func_logger.info("Generated intervals in %g seconds for region %s" % ((time.time() - start_time), chromosome))
return merged_full_filtered_bed
chr1 1 1 Region_A 2 +
chr1 2 2 Region_B 1 +
chr1 3 3 Region_C 3 +
chr1 4 5
""".strip()
b = pybedtools.BedTool(bed, from_string=True).intervals
result = b.all_hits(Interval('chr1', 3, 3))
assert len(result) == 1, len(result)
def test_missing_files():
"""
previously this would crash the interpreter due to an exit(1) call in
bedFile.cpp
"""
a = pybedtools.BedTool('chrA 1 10', from_string=True).saveas("this_file_should_raise_BEDTools_Error")
result = list(iter(a))
os.unlink(a.fn)
from pybedtools.cbedtools import BedToolsFileError
def crashes():
list(iter(a))
assert_raises(BedToolsFileError, crashes)
if __name__ == "__main__":
unittest.main()
pybedtools.cleanup(remove_all=True)
def main():
options = get_options()
# pangenome dictionary
rd = {}
if options.roary is not None:
roary = pd.read_table(options.roary, sep=',', low_memory=False)
roary.set_index('Gene', inplace=True)
# Drop the other info columns
roary.drop(list(roary.columns[:13]), axis=1, inplace=True)
roary.reset_index(inplace=True)
for strain in roary.columns[1:]:
for x, y, in roary.set_index(
strain)['Gene'].dropna().to_dict().items():
if str(x) == 'nan':
continue
# be aware of paralogs
for g in x.split('\t'):
rd[g] = y
# tmp file locations
remaining_tmp = options.tmp_prefix + "/remaining_kmers.txt"
remaining_next_tmp = options.tmp_prefix + "/remaining_kmers_next.txt"
remaining_fa_tmp = options.tmp_prefix + "/remaining_kmers.fa"
remaining_fa_next_tmp = options.tmp_prefix + "/remaining_kmers_next.fa"
pybedtools.helpers.set_tempdir(options.tmp_prefix)
# read references and drafts into list
references = []
with open(options.references, 'r') as reference_files:
for reference in reference_files:
(fa, gff, ref) = reference.rstrip().split()
references.append((fa, gff, ref))
output_file = open(options.output, 'w')
# Open seer results
# seer_remaining = seer_results
seer_remaining = open(options.kmers, 'r')
header = seer_remaining.readline()
# Write out kmer fasta file, keep track of count
kmers_remaining = 0
with open(remaining_fa_tmp, 'w') as kmer_fa:
for kmer in seer_remaining:
kmers_remaining += 1
kmer_fa.write(">" + str(kmers_remaining) + "\n")
kmer_fa.write(kmer.split("\t")[0] + "\n")
seer_remaining.seek(0)
seer_remaining.readline()
# for each reference, then draft
ref_id = 0
for reference in references:
(ref_fa, ref_gff, ref_type) = reference
ref_id += 1
# print number of kmers remaining. if zero, break
if kmers_remaining == 0:
break
sys.stderr.write(str(kmers_remaining) + " kmers remain\n")
if ref_type == "ref":
sys.stderr.write("Reference " + str(ref_id) + "\n")
else:
sys.stderr.write("Draft reference " + str(ref_id) + "\n")
# index reference sequence
bwa_index(ref_fa)
if ref_type == "ref":
bwa_algorithms = ["mem", "fastmap"]
elif ref_type == "draft":
bwa_algorithms = ["fastmap"]
else:
bwa_algorithms = ["fastmap"]
sys.stderr.write("Unknown reference type " + ref_type + " for " +
ref_fa + ". Assuming draft\n")
# Fix ref annotation
tmp_bed = tempfile.NamedTemporaryFile(prefix=options.tmp_prefix + "/")
subprocess.run("gff2bed < " + ref_gff + " > " + tmp_bed.name,
shell=True,
check=True)
ref_annotation = pybedtools.BedTool(tmp_bed.name)
filtered_ref = ref_annotation.filter(
lambda x: True if x[7] == "CDS" else False).saveas('tmp_bed')
ref_annotation = pybedtools.BedTool('tmp_bed')
for bwa_algorithm in bwa_algorithms:
next_seer_remaining = open(remaining_next_tmp, 'w')
next_fasta_remaining = open(remaining_fa_next_tmp, 'w')
# run bwa mem -k 8 for ref, bwa fastmap for draft of remaining.fa
new_idx = 0
kmer_lines = []
map_pos = {}
mapped_kmers = bwa_iter(ref_fa, remaining_fa_tmp, bwa_algorithm)
with tempfile.NamedTemporaryFile('w',
prefix=options.tmp_prefix +
"/") as query_bed:
kmer_idx = 0
for mapping, kmer_line in zip(mapped_kmers, seer_remaining):
if mapping.mapped:
kmers_remaining -= 1
kmer_lines.append(kmer_line.rstrip())
map_pos[kmer_idx] = []
for hit_idx, (contig, start, end,
strand) in enumerate(mapping.positions):
map_pos[kmer_idx].append(contig + ":" +
str(start) + "-" +
str(end))
query_bed.write('\t'.join([
contig,
str(start),
str(end),
str(kmer_idx) + "_" + str(hit_idx), '0', strand
]) + "\n")
kmer_idx += 1
else:
# if unmapped write to seer_remaining and remaining.fa
next_seer_remaining.write(kmer_line)
new_idx += 1
next_fasta_remaining.write(">" + str(new_idx) + "\n")
next_fasta_remaining.write(
kmer_line.split("\t")[0] + "\n")
query_bed.flush()
query_interval = pybedtools.BedTool(query_bed.name)
sorted_query = query_interval.sort()
in_genes = extract_genes(query_interval.intersect(
b=ref_annotation, s=False, stream=True, wb=True),
rd,
id=options.id)
up_genes = extract_genes(sorted_query.closest(b=ref_annotation,
s=False,
D="ref",
iu=True,
stream=True),
rd,
id=options.id)
down_genes = extract_genes(sorted_query.closest(
b=ref_annotation, s=False, D="ref", id=True, stream=True),
rd,
id=options.id)
pybedtools.cleanup() # delete the bed file
for kmer_idx, kmer_line in enumerate(kmer_lines):
annotations = []
for hit_idx, hit in enumerate(map_pos[kmer_idx]):
annotation = hit + ";"
if kmer_idx in down_genes and hit_idx in down_genes[
kmer_idx]:
annotation += down_genes[kmer_idx][hit_idx]
annotation += ";"
if kmer_idx in in_genes and hit_idx in in_genes[
kmer_idx]:
annotation += in_genes[kmer_idx][hit_idx]
annotation += ";"
if kmer_idx in up_genes and hit_idx in up_genes[
kmer_idx]:
annotation += up_genes[kmer_idx][hit_idx]
annotations.append(annotation)
output_file.write(
"\t".join([kmer_line, ",".join(annotations)]) + "\n")
# Clean up
seer_remaining.close()
next_seer_remaining.close()
next_fasta_remaining.close()
os.rename(remaining_next_tmp, remaining_tmp)
os.rename(remaining_fa_next_tmp, remaining_fa_tmp)
# Open next kmer file
seer_remaining = open(remaining_tmp, 'r')
tmp_bed.close()
os.remove('tmp_bed')
sys.stderr.write(str(kmers_remaining) + " kmers remain unannotated\n")
def cleanBedTool(tempPath):
# do best to erase temporary bedtool files if necessary
# (tempPath argument must have been created with initBedTool())
assert "TempBedTool_" in tempPath
pybedtools.cleanup(remove_all=True)
runShellCommand("rm -rf %s" % tempPath)
def score_edits(annotated_edits_file, bg_edits_file, output_file, conf,
gene_positions_dict, genome_fa, flank, chrom_sizes_file, rdd):
"""
1. Reads and filters our (annotated) editing site (fg). The "name" (edit_frac) MUST contain the edited,totalcov for each site.
2. Creates a bedtools interval (interval) containing gene coordinates.
3. Subsets our (annotated) editing list (fg) to get only the edits across one gene, for every gene. If a gene has no edit sites, pass.
A. For this step, we're relying on what's been annotated by annotator. So we are only counting edits that are unambiguously assigned
(edits at a given position that overlaps multiple genes in the same region are not counted).
4. Filter out bg_edits_file from fg_edits_file.
5. Open a window centered around every edit site.
6. Intersect with all edits from (3) to collect all edits that exist within the window.
7. Add up all the edited-reads and total-reads across edited sites and calculate the "edit/editedc" fraction.
8. Calculate the coverage across all C's in each window
"""
chrom_sizes_dict = create_chrom_sizes_dict(chrom_sizes_file)
# (1) Reads and filters our (annotated) editing site (fg). This file MUST have a conf value in the 4th column.
fg = read_and_filter_editing_sites(annotated_edits_file, conf)
progress = trange(len(set(fg['gene_id'])))
all_scores_df = pd.DataFrame(columns=[
'chrom', 'start', 'end', 'name', 'score', 'strand', 'edit_coverage',
'editable_coverage', 'edited_over_edited_c', 'all_c_coverage',
'edited_over_all_c'
])
all_scores = []
for gene_id in set(fg['gene_id']):
try:
# (2) Creates a bedtools interval (interval) containing gene coordinates.
interval = pybedtools.create_interval_from_list([
gene_positions_dict[gene_id]['chrom'],
gene_positions_dict[gene_id]['start'],
gene_positions_dict[gene_id]['end'],
gene_id,
'0',
gene_positions_dict[gene_id]['strand'],
])
# (3) Subsets our (annotated) editing list (fg) to get only the edits across one gene, for every gene.
fg_sites_in_region = fg[fg['gene_id'] == gene_id]
if fg_sites_in_region.shape[0] >= 1:
# thickStart = edited #
fg_sites_in_region.loc[:, 'thickStart'] = fg_sites_in_region[
'edit_frac'].apply(lambda x: int(x.split(',')[0]))
# thickEnd = total coverage #
fg_sites_in_region.loc[:, 'thickEnd'] = fg_sites_in_region[
'edit_frac'].apply(lambda x: int(x.split(',')[1]))
fg_sites_in_region.loc[:,'name'] = fg_sites_in_region.loc[:,'gene_id'] + \
"|" + fg_sites_in_region.loc[:,'region']
fg_sites_in_region = fg_sites_in_region[[
'chrom', 'start', 'end', 'name', 'conf', 'strand',
'thickStart', 'thickEnd'
]]
# (4) Filter out bg_edits_file from fg_edits_file.
fg_prefiltered_sites_bedtool = pybedtools.BedTool.from_dataframe(
fg_sites_in_region)
if bg_edits_file is not None:
bg_sites_bedtool = pybedtools.BedTool(bg_edits_file)
fg_sites_bedtool = fg_prefiltered_sites_bedtool.sort(
).intersect(bg_sites_bedtool.sort(), s=True, v=True)
else:
fg_sites_bedtool = fg_prefiltered_sites_bedtool
if len(
fg_sites_bedtool
) > 0: # If the background file totally removes all edits from the foreground file, we might get an EmptyDataFrame
# (5) Open a window centered around every edit site.
fg_windows_bedtool = create_window_intervals(
fg_sites_bedtool, flank, chrom_sizes_dict)
# (6) Intersect with all edits from (3) to collect all edits that exist within the window.
intersected_edits = fg_windows_bedtool.intersect(
fg_sites_bedtool, s=True, wa=True,
loj=True).to_dataframe(names=[
'chrom', 'start', 'end', 'name', 'score', 'strand',
'edit_chrom', 'edit_start', 'edit_end',
'edit_name', 'edit_score', 'edit_strand',
'edit_coverage', 'editable_coverage'
])
# (7) Add up all the edited-reads and total-reads across edited sites and calculate the "edit/editedc" fraction.
summed_confs = pd.DataFrame(
intersected_edits.groupby([
'chrom', 'start', 'end', 'name', 'score', 'strand'
])['edit_score'].sum()).reset_index()
# blockCount is the "number of reads supporting an edit site"
summed_edits = pd.DataFrame(
intersected_edits.groupby([
'chrom', 'start', 'end', 'name', 'score', 'strand'
])['edit_coverage'].sum()).reset_index()
# editable_coverage (blockSizes) is the "total number of reads at the edited site"
summed_total_coverage = pd.DataFrame(
intersected_edits.groupby([
'chrom', 'start', 'end', 'name', 'score', 'strand'
])['editable_coverage'].sum()).reset_index()
df = pd.merge(summed_edits,
summed_total_coverage,
how='outer',
left_on=[
'chrom', 'start', 'end', 'name', 'score',
'strand'
],
right_on=[
'chrom', 'start', 'end', 'name', 'score',
'strand'
])
df['edited_over_edited_c'] = df['edit_coverage'] / df[
'editable_coverage']
# (8) Calculate the coverage across all C's in each window
df['all_c_coverage'] = df.apply(get_total_c_coverage,
args=(
rdd,
genome_fa,
),
axis=1)
df['edited_over_all_c'] = df['edit_coverage'] / df[
'all_c_coverage']
# reorder columns to match
df = df[[
'chrom', 'start', 'end', 'name', 'score', 'strand',
'edit_coverage', 'editable_coverage',
'edited_over_edited_c', 'all_c_coverage',
'edited_over_all_c'
]]
all_scores.append(df)
# all_scores = pd.concat([all_scores, df])
pybedtools.cleanup()
except KeyError as e:
pass
progress.update(1)
for score_df in all_scores:
all_scores_df = pd.concat([all_scores_df, score_df])
all_scores_df.sort_values(by=['chrom', 'start', 'end', 'strand']).to_csv(
output_file, sep='\t', index=False, header=True)
def teardown():
pybedtools.cleanup()
def teardown():
# always run this!
pybedtools.cleanup(remove_all=True)
def run_age_parallel(intervals_bed=None, reference=None, assembly=None, pad=AGE_PAD, age=None, age_workdir=None,
timeout=AGE_TIMEOUT, keep_temp=False, assembly_tool="spades", chrs=[], nthreads=1,
min_contig_len=AGE_MIN_CONTIG_LENGTH,
max_region_len=AGE_MAX_REGION_LENGTH, sv_types=[],
min_del_subalign_len=MIN_DEL_SUBALIGN_LENGTH, min_inv_subalign_len=MIN_INV_SUBALIGN_LENGTH,
age_window = AGE_WINDOW_SIZE):
func_logger = logging.getLogger("%s-%s" % (run_age_parallel.__name__, multiprocessing.current_process()))
if not os.path.isdir(age_workdir):
func_logger.info("Creating %s" % age_workdir)
os.makedirs(age_workdir)
if assembly:
if not os.path.isfile("%s.fai" % assembly):
func_logger.info("Assembly FASTA wasn't indexed. Will attempt to index now.")
pysam.faidx(assembly)
func_logger.info("Loading assembly contigs from %s" % assembly)
with open(assembly) as assembly_fd:
if assembly_tool == "spades":
contigs = [SpadesContig(line[1:]) for line in assembly_fd if line[0] == '>']
elif assembly_tool == "tigra":
contigs = [TigraContig(line[1:]) for line in assembly_fd if line[0] == '>']
else:
contigs = []
chrs = set(chrs)
sv_types = set(sv_types)
contig_dict = {contig.sv_region.to_tuple(): [] for contig in contigs if (len(
chrs) == 0 or contig.sv_region.chrom1 in chrs) and contig.sequence_len >= min_contig_len and contig.sv_region.length() <= max_region_len and (
len(sv_types) == 0 or contig.sv_type in sv_types)}
func_logger.info("Generating the contig dictionary for parallel execution")
small_contigs_count = 0
for contig in contigs:
if contig.sv_region.length() > max_region_len:
func_logger.info("Too large SV region length: %d > %d" % (contig.sv_region.length(),max_region_len))
continue
if (len(chrs) == 0 or contig.sv_region.chrom1 in chrs) and (len(sv_types) == 0 or contig.sv_type in sv_types):
if contig.sequence_len >= min_contig_len:
contig_dict[contig.sv_region.to_tuple()].append(contig)
else:
small_contigs_count += 1
region_list = sorted(contig_dict.keys())
nthreads = min(nthreads, len(region_list))
if nthreads == 0:
func_logger.warning("AGE not run since no contigs found")
return None
func_logger.info("Will process %d regions with %d contigs (%d small contigs ignored) using %d threads" % (
len(region_list), sum([len(value) for value in contig_dict.values()]), small_contigs_count, nthreads))
pybedtools.set_tempdir(age_workdir)
pool = multiprocessing.Pool(nthreads)
breakpoints_beds = []
for i in xrange(nthreads):
region_sublist = [region for (j, region) in enumerate(region_list) if (j % nthreads) == i]
kwargs_dict = {"intervals_bed": intervals_bed, "region_list": region_sublist, "contig_dict": contig_dict,
"reference": reference, "assembly": assembly, "pad": pad, "age": age, "age_workdir": age_workdir,
"timeout": timeout, "keep_temp": keep_temp, "myid": i,
"min_del_subalign_len": min_del_subalign_len, "min_inv_subalign_len": min_inv_subalign_len,
"age_window" : age_window}
pool.apply_async(run_age_single, args=[], kwds=kwargs_dict,
callback=partial(run_age_single_callback, result_list=breakpoints_beds))
pool.close()
pool.join()
func_logger.info("Finished parallel execution")
func_logger.info("Will merge the following breakpoints beds %s" % (str(breakpoints_beds)))
pybedtools.cleanup(remove_all=True)
if not breakpoints_beds:
return None
bedtool = pybedtools.BedTool(breakpoints_beds[0])
for bed_file in breakpoints_beds[1:]:
bedtool = bedtool.cat(pybedtools.BedTool(bed_file), postmerge=False)
bedtool = bedtool.moveto(os.path.join(age_workdir, "breakpoints_unsorted.bed"))
merged_bed = os.path.join(age_workdir, "breakpoints.bed")
bedtool.sort().saveas(merged_bed)
return merged_bed
def format_hartwig(mutation_file, cnvs_file, purity_file, outfile):
# load files and preformat them
df, cnv_bed, purity_score, gender = load_files(mutation_file, cnvs_file,
purity_file)
# this is the sample column
lastcol = list(df.columns)[-1]
# get total reads
df_reads = df.apply(get_reads, axis=1, args=([lastcol]))
# select whether we have SNVs or others
df_reads['len_alt'] = df_reads['ALT'].str.len()
# number of characters in ref
df_reads['len_ref'] = df_reads['REF'].str.len()
# first classification between SNV and others
df_reads['TYPE'] = df_reads.apply(lambda x: 'SNV' if (
(x['len_alt'] == 1) and (x['len_ref'] == 1) and (x['ALT'] != '-') and
(x['REF'] != '-')) else 'INDEL',
axis=1)
df_reads['pos-1'] = df_reads['POS'] - 1
# get the triplet
df_reads['TRIPLET'] = df_reads.apply(
lambda x: hg19(x['CHROM'], x['pos-1'], 3), axis=1)
df_reads['EXTENDED'] = df_reads.apply(
lambda x: hg19(x['CHROM'],
int(x['POS']) - 2, 5), axis=1)
snv_df = df_reads[df_reads['TYPE'] != 'INDEL']
snv_df['CLASS'] = 'SNV'
snv_df['VARIANT_CLASS'] = snv_df.apply(create_snv_class, axis=1)
# classify indels
indel_df = df_reads[df_reads['TYPE'] == 'INDEL']
indels = indels_classification(indel_df)
columns = indels.columns
df_reads_merged = pd.concat([snv_df, indels], sort=True)
df_reads_merged = df_reads_merged[columns]
# assing the name of the sample
df_reads_merged['sample'] = lastcol
# create bed file
mut_bed = BedTool.from_dataframe(df_reads_merged[[
'CHROM', 'pos-1', 'POS', 'ref_reads', 'var_reads', 'VAF',
'total_reads', 'REF', 'ALT', 'sample', 'TYPE', 'CLASS',
'VARIANT_CLASS', 'TRIPLET', 'EXTENDED'
]])
# Remove unmappable regions
mapped = get_mappable_regions(mut_bed)
# intersect with CN data
out = mapped.intersect(cnv_bed, wao=True)
# merge to dataframe
merge = out.to_dataframe(names=[
'CHROM', 'POS-1', 'POS', 'REF_COUNTS', 'VAR_COUNTS', 'VAF',
'TOTAL_READS', 'REF', 'ALT', 'SAMPLE', 'TYPE', 'CLASS',
'VARIANT_CLASS', 'TRIPLET', 'EXTENDED', 'c1', 'p1', 'p2',
'MAJOR_CN_TEMP', 'actual_Baf', 'overlapp'
])
# get the normal copy number values
sex_chrom = ('Y', 'X')
# get normal CN in the chromosome
merge['NORMAL_CN'] = merge['CHROM'].apply(
lambda x: 1 if x in sex_chrom and gender == "MALE" else 2)
# add the purity score we got from PURPLE
merge['PURITY'] = purity_score
merge['GENDER'] = gender
# get number of CNAs, if no overlapp then get the normal count
merge['TOTAL_CN'] = merge.apply(get_major_cn, axis=1)
# formula of allele specific copy number according to hartwig's people
merge['MAJOR_CN'] = round(merge['actual_Baf'] *
merge['TOTAL_CN']).astype(int)
merge['MINOR_CN'] = round(
(1 - merge['actual_Baf']) * merge['TOTAL_CN']).astype(int)
merge['CHROM'] = merge['CHROM'].apply(lambda x: 'chr{}'.format(x))
# save files
merge.dropna()[[
'CHROM', 'POS', 'REF', 'ALT', 'TRIPLET', 'EXTENDED', 'CLASS',
'VARIANT_CLASS', 'SAMPLE', 'MAJOR_CN', 'MINOR_CN', 'TOTAL_CN',
'NORMAL_CN', 'VAR_COUNTS', 'REF_COUNTS', 'GENDER', 'PURITY'
]].to_csv(outfile, sep='\t', index=False, header=True, compression='gzip')
# clean BedTools temp files
pybedtools.cleanup()
def parallel_generate_sc_intervals(bams, chromosomes, skip_bed, workdir, num_threads=1, min_avg_base_qual=SC_MIN_AVG_BASE_QUAL,
min_mapq=SC_MIN_MAPQ, min_soft_clip=SC_MIN_SOFT_CLIP, max_soft_clip=SC_MAX_SOFT_CLIP, pad=SC_PAD,
min_support=MIN_SUPPORT, min_support_frac=MIN_SUPPORT_FRAC, max_intervals=MAX_INTERVALS):
func_logger = logging.getLogger(
"%s-%s" % (parallel_generate_sc_intervals.__name__, multiprocessing.current_process()))
if not os.path.isdir(workdir):
func_logger.info("Creating directory %s" % workdir)
os.makedirs(workdir)
if not chromosomes:
func_logger.info("Chromosome list unspecified. Inferring from the BAMs")
for bam in bams:
bamfile = pysam.Samfile(bam, "rb")
chromosomes += list(bamfile.references)
bamfile.close()
chromosomes = sorted(list(set(chromosomes)))
func_logger.info("Chromosome list inferred as %s" % (str(chromosomes)))
if not chromosomes:
func_logger.error("Chromosome list empty")
return None
pool = multiprocessing.Pool(num_threads)
bed_files = []
for index, (bam, chromosome) in enumerate(itertools.product(bams, chromosomes)):
process_workdir = os.path.join(workdir, str(index))
if not os.path.isdir(process_workdir):
os.makedirs(process_workdir)
args_list = [bam, chromosome, process_workdir]
kwargs_dict = {"min_avg_base_qual": min_avg_base_qual, "min_mapq": min_mapq, "min_soft_clip": min_soft_clip,
"max_soft_clip": max_soft_clip, "pad": pad, "min_support": min_support,
"min_support_frac": min_support_frac}
pool.apply_async(generate_sc_intervals, args=args_list, kwds=kwargs_dict,
callback=partial(generate_sc_intervals_callback, result_list=bed_files))
pool.close()
pool.join()
func_logger.info("Following BED files will be merged: %s" % (str(bed_files)))
if not bed_files:
func_logger.warn("No intervals generated")
return None
pybedtools.set_tempdir(workdir)
bedtool = pybedtools.BedTool(bed_files[0])
for bed_file in bed_files[1:]:
bedtool = bedtool.cat(pybedtools.BedTool(bed_file), postmerge=False)
bedtool = bedtool.moveto(os.path.join(workdir, "all_intervals.bed"))
func_logger.info("Selecting the top %d intervals based on normalized read support" % max_intervals)
top_intervals_all_cols_file = os.path.join(workdir, "top_intervals_all_cols.bed")
if bedtool.count() <= max_intervals:
bedtool = bedtool.saveas(top_intervals_all_cols_file)
else:
# Sample the top intervals
top_fraction_cutoff = sorted([float(interval.score) / float(interval.fields[6]) for interval in bedtool], reverse=True)[max_intervals-1]
bedtool = bedtool.filter(lambda x: float(x.score) / float(x.fields[6]) >= top_fraction_cutoff).moveto(top_intervals_all_cols_file)
# Filter out the extra column added to simplify life later on
bedtool = bedtool.cut(xrange(6)).saveas(os.path.join(workdir, "top_intervals.bed"))
if skip_bed:
skip_bedtool = pybedtools.BedTool(skip_bed)
func_logger.info(
"Merging %d features with %d features from %s" % (bedtool.count(), skip_bedtool.count(), skip_bed))
bedtool = skip_bedtool.cat(bedtool, postmerge=False).sort()
func_logger.info("After merging with %s %d features" % (skip_bed, bedtool.count()))
bedtool = bedtool.saveas(os.path.join(workdir, "intervals.bed"))
pybedtools.cleanup(remove_all=True)
return bedtool.fn
def teardown():
pybedtools.cleanup()
def filter_by_covr(cov_filename, cov_site_min, cov_gene_min, gtffile,
genomic_regions, tmp_dir):
"""
Wrapper for filtering nodes. Filter based on minimum unique read counts and minimum gene expression.
"""
node_list = [
chr_strand + ':' + str(start) + ':' + str(end)
for chr_strand in genomic_regions
for start, end in genomic_regions[chr_strand]
]
covfile = pysam.Samfile(cov_filename)
gene_preserved = deque()
site_preserved = deque()
if cov_site_min > 0:
k = 0
for chr_strand in genomic_regions:
chr, strand = chr_strand.split(':')
print_time_stamp('filtering site: ' + chr_strand)
for start, end in genomic_regions[chr_strand]:
k += 1
if not k % 10000:
print_time_stamp('filtering site count: ' + str(k) + '/' +
str(len(node_list)))
node = chr_strand + ':' + str(start) + ':' + str(end)
num_reads = sum([
1 for x in covfile.fetch(chr, int(start), int(end))
if x.pos > start and x.pos < end
])
if num_reads >= cov_site_min:
site_preserved.add(node)
else:
site_preserved = set(node_list)
if cov_gene_min > 0:
genomic_regions_list = [
(chr_strand.split(':')[0], int(start), int(end),
chr_strand + ':' + ':'.join([str(start), str(end)]), 'X',
chr_strand.split(':')[1]) for chr_strand in genomic_regions
for start, end in genomic_regions[chr_strand]
]
genomic_regions_bed = pybedtools.BedTool(genomic_regions_list)
gtf = pybedtools.BedTool(gtffile)
overlap_transcripts = genomic_regions_bed.intersect(gtf,
wo=True,
s=True)
overlap_transcripts.saveas(tmp_dir + '/genomic_regions.gtf.bed')
total = len(overlap_transcripts)
pybedtools.cleanup()
del overlap_transcripts
del gtf
del genomic_regions_list
cov_scale = sum([
int(x.split('\t')[2])
for x in pysam.idxstats(cov_filename).split('\n') if len(x) > 0
]) / 1000000.0
#gene_fpkm=read_cufflinks('/u/home/f/frankwoe/scratch/Ule_RNAseq_hnRNPC/cufflinks_output_star/genes.fpkm_tracking')
gene_rpkm = {}
k = 0
f = open(tmp_dir + '/genomic_regions.gtf.bed', 'r')
for ele in f:
line = ele.split()
k += 1
if not k % 10000:
print_time_stamp('filtering gene RPKM: ' + str(k) + '/' +
str(total))
node = line[3]
#if not node in site_preserved:
# continue
gene_id = line[9]
#RPKM = gene_fpkm[gene_id] if gene_id in gene_fpkm else 0
if gene_id in gene_rpkm:
RPKM = gene_rpkm[gene_id]
else:
chr, start, end = line[6], line[7], line[8]
transcript_count = covfile.count(chr, int(start), int(end))
block_sizes = [int(x) for x in line[16].split(',') if x != '']
gene_len = sum(block_sizes) / 1000.0
RPKM = transcript_count / cov_scale / gene_len
gene_rpkm[gene_id] = RPKM
if RPKM >= cov_gene_min:
gene_preserved.append(node)
gene_preserved = set(gene_preserved)
f.close()
else:
gene_preserved = set(node_list)
return gene_preserved.intersection(site_preserved)
if options.snpformat == "VCFID":
snpid = str(line_vcf[2])
else:
snpid = str(line_vcf[0].lstrip("chr")) + ":" + str(
line_vcf[1]) + ":" + str(line_vcf[3]) + ":" + str(
line_vcf[4])
if snpid in allsnplist:
counts = findcarriers(line_vcf, options.gtfield,
options.snpformat, sampleindices,
options.maxAC, options.maxAF,
options.minAN)
if counts[2] > 0:
count_table[snpid] = [
snpid, counts[0], counts[1], counts[2]
]
pybedtools.cleanup()
#Generate output counts
outfile = open(options.outfilename, "w")
outfile.write(
"#GENE\tCASE_COUNT_HET\tCASE_COUNT_CH\tCASE_COUNT_HOM\tCASE_TOTAL_AC\n")
snpfile = open(options.snpfilename, "r")
for line_s1 in snpfile:
line_s = line_s1.rstrip('\n').split('\t')
if line_s[0][0] != "#":
genesnplist = list(set(line_s[1].split(',')))
counts = calculatecount(genesnplist, count_table)
outfile.write(line_s[0] + "\t" + str(counts[0]) + "\t" +
str(counts[1]) + "\t" + str(counts[2]) + "\t" +
str(counts[3]) + '\n')
outfile.close()
## retrieve bin-value relationships
sampleName = args.name[index]
binValDict = RunMetagene(inputBedDict, args, kwargs)
## Deletes all temp files from the current session
pybedtools.cleanup(verbose=False, remove_all=False)
if iboolDict['bam']:
tempFile.close()
return [sampleName, binValDict]
# main program
if __name__ == '__main__':
## setting temporary dir for pybedtools
pybedtools.set_tempdir(args.temp)
if args.deltmp:
pybedtools.cleanup(verbose=False, remove_all=True)
## judge arguments
FileExist([args.anno], 'anno')
if args.reverse and args.strand:
sys.exit('--reverse and --strand should not be True at the same time!')
if args.gene != 'protein_coding' and args.feature in [
'coding', 'utr5', 'cds', 'utr3'
]:
sys.exit(
'--feature should not be ["coding", "utr5", "cds", "utr3"] when --gene is not "protein_coding"!'
)
## bam and bed judgement
iboolDict = defaultdict(bool)
ibool = 0
if bool(args.bed):
FileExist(args.bed, 'bed')
