def probabilities_blosum_62_2():
seqs = sequence.readFastaFile("./files/simple_seqs/simple_2.fasta")
profile1 = aln_profile.AlignmentProfile([seqs[0]])
profile2 = aln_profile.AlignmentProfile([seqs[1]])
phmm = align.load_params(params.basic_params, [profile1, profile2],
sub_matrix.blosum62LatestProbs,
log_transform=True)
return phmm
def durbin_blosum_50_2():
seqs = sequence.readFastaFile("./files/simple_seqs/durbin_2.fasta")
profile1 = aln_profile.AlignmentProfile([seqs[0]])
profile2 = aln_profile.AlignmentProfile([seqs[1]])
phmm = align.load_params(params.basic_params, [profile1, profile2],
sub_matrix.blosum50,
log_transform=True)
return phmm
def annotateThis(args):
outputfile = output(args)
if '.fa' in args.annotateFile or '.fasta' in args.annotateFile:
outputfile = outputfile + '.csv'
print("this is a FASTA file")
annot = sequence.readFastaFile(args.annotateFile,
sequence.Protein_Alphabet,
ignore=True,
parse_defline=False)
with open(outputfile, 'w', newline='') as f:
fieldnames = ['Name', 'Sequence', 'Annots']
thewriter = csv.DictWriter(f, fieldnames=fieldnames)
thewriter.writeheader()
for seq in annot:
s = ''.join(seq.sequence)
thewriter.writerow({
'Name': seq.name,
'Sequence': s,
args.annotateKeyword: args.annotateKeyword
})
elif '.csv' in args.annotateFile:
print("this is a CSV file")
outputfile = outputfile + '.csv'
with open(args.annotateFile, newline='') as f:
reader = csv.reader(f)
header = next(reader)
nameCol = 0
seqCol = 0
dictionary = {}
for h in range(len(header)):
if header[h] == 'Name':
nameCol = h
elif header[h] == 'Sequence':
seqCol = h
for row in reader:
dictionary[row[nameCol]] = row[seqCol]
with open(outputfile, 'w', newline='') as f:
fieldnames = ['Name', 'Sequence', 'Annots']
thewriter = csv.DictWriter(f, fieldnames=fieldnames)
thewriter.writeheader()
for name, seq in dictionary.items():
thewriter.writerow({
'Name': name,
'Sequence': seq,
'Annots': args.annotateKeyword
})
def two_col_62_2():
seqs = sequence.readFastaFile("./files/custom_seqs/2_col.fasta")
profile1 = aln_profile.AlignmentProfile([seqs[0]])
profile2 = aln_profile.AlignmentProfile([seqs[1]])
phmm = align.load_params(params.basic_params, [profile1, profile2],
sub_matrix.blosum62,
log_transform=True)
return phmm
def borodovsky_blosum_50_2():
seqs = sequence.readFastaFile("./files/simple_seqs/borodovsky.fasta")
profile1 = aln_profile.AlignmentProfile([seqs[0]])
profile2 = aln_profile.AlignmentProfile([seqs[1]])
phmm = align.load_params(params.borodovsky_4_7, [profile1, profile2],
sub_matrix.blosum62LatestProbs,
log_transform=False)
return phmm
def ox_104t17_1():
seqs = sequence.readFastaFile(
"./files/qscore_corrections/ox_104t17_1.fasta")
profile1 = aln_profile.AlignmentProfile([seqs[0]])
profile2 = aln_profile.AlignmentProfile([seqs[1]])
phmm = align.load_params(params.qscore_params, [profile1, profile2],
sub_matrix.blosum62EstimatedWithX,
log_transform=True)
return phmm
def read(args):
outputfile = output(args)
orig_dict = {}
if '.csv' in args.input:
print("this is a CSV file")
outputfile = outputfile + '.fa'
with open(args.input, newline='') as f:
reader = csv.reader(f)
for row in reader:
orig_dict[row[0]] = row[1]
seq_list = [
sequence.Sequence(sequence=seq, name=seqname)
for seqname, seq in orig_dict.items()
]
sequence.writeFastaFile(outputfile, seq_list)
elif '.tab' in args.input or '.tsv' in args.input:
print("this is a TAB/TSV file")
outputfile = outputfile + '.fa'
with open(args.input) as tsv:
for line in csv.reader(tsv, dialect="excel-tab"):
orig_dict[line[0]] = line[1]
seq_list = [
sequence.Sequence(sequence=seq, name=seqname)
for seqname, seq in orig_dict.items()
]
sequence.writeFastaFile(outputfile, seq_list)
elif '.fa' in args.input or '.fasta' in args.input:
print("this is a FASTA file")
outputfile = outputfile + '.csv'
db100 = sequence.readFastaFile(args.input,
sequence.Protein_Alphabet,
ignore=True,
parse_defline=False)
with open(outputfile, 'w', newline='') as f:
fieldnames = ['Name', 'Sequence']
thewriter = csv.DictWriter(f, fieldnames=fieldnames)
thewriter.writeheader()
for seq in db100:
s = ''.join(seq.sequence)
thewriter.writerow({'Name': seq.name, 'Sequence': s})
'''
Created on 29/03/2014
@author: jacekrad
'''
import sequence as seq
ex5_filename = "sigpep_at.fa"
ex6_filename = "lipmet_at.fa"
ex7_filename = "ex7.fa"
""" read sequences from questions 5 & 6 into corresponding lists """
sequences_q5 = seq.readFastaFile(ex5_filename)
sequences_q6 = seq.readFastaFile(ex6_filename)
print "Q5 sequence has ", len(sequences_q5), " entries"
print "Q6 sequence has ", len(sequences_q6), " entries"
ids_q5 = []
ids_q6 = []
for sequence in sequences_q5:
ids_q5.append(sequence.name)
for sequence in sequences_q6:
ids_q6.append(sequence.name)
common_ids = set(ids_q5).intersection(set(ids_q6))
print len(common_ids), " common matches found"
""" save the common entries into a FASTA file as well as a dictionary
for i in range(len(calls)): # go through each position
supported.append(calls[i] and diff[i] > 0)
return supported
def getScores(seq, index=0):
""" Create a score list for a sequence by referencing the Chou-Fasman table.
"""
return [cf_dict[s.upper()][index] for s in seq]
""" -------------------------------------------
Below is test code
------------------------------------------- """
# Read some protein sequence data
prot = sequence.readFastaFile('prot2.fa', symbol.Protein_Alphabet)
# read the secondary structure data for the proteins above (indices should agree)
sstr = sequence.readFastaFile('sstr3.fa', symbol.DSSP3_Alphabet)
#prot = [sequence.Sequence('PNKRKGFSEGLWEIENNPTVKASGY', symbol.Protein_Alphabet, '2NLU_r76')]
#sstr = [sequence.Sequence('CCCCHHHHHHHHHHHCCCCCCCCCC', symbol.DSSP3_Alphabet, '2NLU_s76')]
#prot = [sequence.Sequence("SEQSICQARAAVMVYDDANKKWVPAGGSTGFSRVHIYHHTGNNTFRVVGRKIQDHQVVIN" +\
# "CAIPKGLKYNQATQTFHQWRDARQVYGLNFGSKEDANVFASAMMHALEVLN", symbol.Protein_Alphabet, "1EVH")]
#sstr = [sequence.Sequence("CEEEEEEEEEEEEEEECCCCEEEEHHHCCCCEEEEEEEECCCCEEEEEEEECCCCCEEEEEEE" +\
# "CCCCCCECCCCCEEEEECCCCEEEEEECCHHHHHHHHHHHHHHHHHHC", symbol.DSSP3_Alphabet, "1EVH")]
tp = 0 # number of true positives (correctly identified calls)
tn = 0 # number of true negatives (correctly missed no-calls)
fp = 0 # number of false positives (incorrectly identified no-calls)
fn = 0 # number of false negatives (incorrectly missed calls)
'''
Created on 30/03/2014
Assessment question 5
Exercises 8 & 9
@author: jacekrad
'''
import sequence as seq
from collections import Counter
from webservice import *
sequences = seq.readFastaFile("mystery1.fa")
all_ids = []
""" for all the IDs in the sequences found in mystery1.fa get a ID mapping
from P_REFSEQ_AC to ACC and for each IS in the map (dictionary) add it to
the list of all IDs
"""
for sequence in sequences:
ids = idmap(sequence.name, 'P_REFSEQ_AC', 'ACC')
for value in ids.values():
all_ids.append(value)
""" get a list of unique IDs from all the IDs """
unique_ids = list(set(all_ids))
combined_GOterms = []
input[_onehotIndex(self.inp_alpha, subseqs[i])] = 1
outvec = self.nn1.feedforward(input)
d = prob.Distrib(self.outp_alpha)
for k in range(len(outvec)):
d.observe(self.outp_alpha[k], outvec[k])
predsyms[i + W / 2] = d.getmax() # use the symbol with the highest probability
return sequence.Sequence(predsyms, self.outp_alpha)
##################################################################################################################
# Example applications of ML methods including NNs and Naive Bayes for secondary structure prediction. #
##################################################################################################################
if __name__=='__main__': # examples to run unless this module is merely "imported"
import os, time
os.chdir('/Users/mikael/workspace/binf/data') # Note you will need to change this to find your directory of choice
prot = sequence.readFastaFile('prot2.fa', symbol.Protein_Alphabet) # proteins
sstr = sequence.readFastaFile('sstr3.fa', symbol.DSSP3_Alphabet) # secondary structure of prot
# separate training and test data
prot_trn = prot[0::2] # even-numbered indices
prot_tst = prot[1::2] # odd-numbered indices
sstr_trn = sstr[0::2] # even-numbered indices
sstr_tst = sstr[1::2] # odd-numbered indices
W = 15
if __name__=='__main__': # NN (should read "__main__" for it to be executed on "Run")
nHid = 30
nn = SeqNN(W, symbol.Protein_Alphabet, symbol.DSSP3_Alphabet, nHid, cascade = W)
#nn.nn = ml.readNNFile('sstr3.nn')
#print "Successfully loaded network"
start = time.time()
print nn.observeAll(prot_trn, sstr_trn, eta = 0.01, niter = 20)
def align_seqs(inpath,
outpath,
aln_type,
params=parameters.basic_params,
subsmat=sub_matrix.blosum62EstimatedWithX_dict,
log_transform=True):
print("params are")
print(params)
# Read sequences in
seqs = sequence.readFastaFile(inpath, alphabet=Protein_Alphabet_wB_X_Z)
print(len(seqs))
if len(seqs) == 2:
aln_order = [("N0", [seqs[0].name, seqs[1].name])]
else:
# Calculate guide tree
guide_tree = gt.get_guide_tree(seqs, random=False)
print(guide_tree.ascii_art())
# Get the alignment order
aln_order = gt.get_aln_order(guide_tree)
# print (aln_order)
print(aln_order)
seq_dict = {x.name: x for x in seqs}
# Predecessors start off blank
predecessors = [{}, {}]
# Create alignment in order from guide tree
for node in aln_order:
# Get the current node name and list of sequences under that node
curr_node = node[0]
curr_seqs = node[1]
# List to store the aligned sequences in
aligned = []
# While the node has sequences underneath yet to be aligned
while curr_seqs:
# Get a sequence
seq = curr_seqs.pop()
# Make it into a profile if it isn't one already
if type(seq_dict[seq]) != aln_profile.AlignmentProfile:
profile = aln_profile.AlignmentProfile([seq_dict[seq]])
else:
profile = seq_dict[seq]
# Add sequence to the aligned list
aligned.append(profile)
# if len(alns) > 1:
# new_align = "-align-".join(alns)
# alns = []
# alns.append(new_align)
# If we have two profiles it is time to align
if len(aligned) > 1:
pair_hmm = load_params(params, aligned, subsmat, log_transform,
predecessors)
if aln_type == 'viterbi':
pair_hmm.performViterbiAlignment(po=False)
aligned_profile = pair_hmm.get_alignment(
type_to_get='viterbi')
elif aln_type == 'poviterbi':
pair_hmm.performViterbiAlignment(po=True)
aligned_profile = pair_hmm.get_alignment(
type_to_get='viterbi')
elif aln_type == 'mea':
pair_hmm.performMEAAlignment(po=False)
aligned_profile = pair_hmm.get_alignment(type_to_get='mea')
elif aln_type == 'pomea':
pair_hmm.performMEAAlignment(po=True)
aligned_profile = pair_hmm.get_alignment(type_to_get='mea')
# Clear the previous unaligned sequences
aligned = []
# Add the aligned sequences
aligned.append(aligned_profile)
# print ('wowza')
# print (aligned[0])
# print(aligned[0].predecessors)
seq_dict[curr_node] = aligned[0]
# print('alignment is ')
# print(aligned_profile)
with open(outpath, 'w') as outfile:
outfile.write(str(aligned_profile))
return aligned_profile
sys.exit(2)
FILENAME = None
DISCOVER_MODE = False
SCAN_MODE = False
WORD_WIDTH = 8
PEAK_WIDTH = 100
PEAK_MARGIN = 100
MOTIF_ID = 'MA0112.2'
JASPAR_FILE = 'JASPAR_matrices.txt'
for o, a in optlst:
if o == '-h': usage(sys.argv[0])
elif o == '-f': FILENAME = a
elif o == '-d': DISCOVER_MODE = True
elif o == '-w': WORD_WIDTH = int(a)
elif o == '-p': PEAK_WIDTH = int(a)
elif o == '-m': PEAK_MARGIN = int(a)
elif o == '-s': SCAN_MODE = True; MOTIF_ID = a
elif o == '-j': JASPAR_FILE = a
if FILENAME == None:
usage(sys.argv[0], "Filename not specified")
sys.exit(3)
seqs = sequence.readFastaFile(FILENAME, sym.DNA_Alphabet_wN)
if DISCOVER_MODE:
print("Discover (f=%s; w=%d; p=%d; m=%d)" % (FILENAME, WORD_WIDTH, PEAK_WIDTH, PEAK_MARGIN))
countWordsReport(seqs, WORD_WIDTH, PEAK_WIDTH, PEAK_MARGIN)
elif SCAN_MODE:
scanMotifReport(seqs, MOTIF_ID)
else:
usage(sys.argv[0], "No run mode selected")
def motifSearch(args, motifs):
names = dict()
# Create a dictionary for each motif,
# which associates columns with a match to the number of sequences with that match
for s in args.input:
if (args.type == 'a'):
aln = sequence.readFastaFile(s,
sequence.Protein_Alphabet,
gappy=True,
ignore=True,
parse_defline=False)
ali = sequence.Alignment(aln)
else:
ali = sequence.readFastaFile(s,
sequence.Protein_Alphabet,
ignore=True,
parse_defline=False)
dictionary = dict()
for a in ali:
T1 = False
if 'T1' in a.info:
seqName = a.name + "+T1=yes"
T1 = True
if 'T2' in a.info:
seqName = a.name + "+T2=yes"
elif T1 == False:
seqName = a.name
#print(seqName)
#seqName = str(a).split(":")[0]
seqSequence = str(a).split(":")[1].strip()
thisset = set()
for m in motifs:
number = 0
for i in range(len(args.motif)):
if str(m) == args.motif[i]:
number = i
if (args.type == 'a'):
result = m.search(a, gappy=True)
else:
result = m.search(a)
if (len(result) > 1):
for r in result: #position, matched string, score
motifStart, foundMotif, n = r
addThis = ('motif' + str(number + 1) + ',' +
str(motifStart) + ',' + str(foundMotif) +
',' + str(len(foundMotif) + motifStart))
thisset.add(addThis)
elif (len(result) == 1):
motifStart, foundMotif, n = str(result).split(",")
addThis = ('motif' + str(number + 1) + ',' +
str(motifStart[2:]) + ',' + str(foundMotif) +
',' +
str(len(foundMotif) + int(motifStart[2:])))
thisset.add(addThis)
else:
pass
thisset.add('Sequence,' + seqSequence + ', ' + ', ')
dictionary[seqName] = thisset
names[s] = dictionary
#print(names)
return (names, dictionary)
self.alignment = a
return q
def getForeground(self):
""" Return the probability distributions for columns in the discovered alignment. """
return self.q
def getBackground(self):
""" Return the probability distributions for the background used in the discovery. """
return self.p
# Example 1: Find the peroxisome targeting signal
if __name__=='__main__0':
import os
os.chdir('/Users/mikael/workspace/binf/data/') # set to the directory where you keep your files
seqs = sequence.readFastaFile('pex2.fa', symbol.Protein_Alphabet)
W = 3
pseudo = prob.readDistrib('blosum62.distrib')
gibbs = GibbsMotif(seqs, W)
q = gibbs.discover(pseudo)
p = gibbs.getBackground()
# Let's display the results, i.e. the best matches to the found motif
a = getAlignment(seqs, q, p)
k = 0
for seq in seqs:
print "%s \t%d \t%s" % (str(seq), a[k], seq[a[k]:a[k]+W])
k += 1
# save the motif in two files: one for the foreground distributions and one with the background
prob.writeDistribs(q, 'pex2q.distrib')
def main():
parser = argparse.ArgumentParser()
parser.add_argument("-i",
"--input",
help="Input FASTA file",
required=True)
parser.add_argument("-db",
"--database",
help="Database output file name",
required=True)
parser.add_argument("-r",
"--redundancy",
nargs='*',
help="List of redundancy levels",
default=[90, 80, 70])
parser.add_argument("-t1", "--tier1", help="User's Tier1 sequences")
parser.add_argument("-t2", "--tier2", help="User's Tier2 sequences")
parser.add_argument("-ml",
"--maxlength",
help="Max length that the sequence can be",
default=800)
parser.add_argument("-e",
"--eval",
nargs='*',
help="List of evalues",
default=[1e-100, 1e-75, 1e-50, 1e-20, 1e-10, 1e-5])
args = parser.parse_args()
tier2 = {}
tier2_short = {}
tier2_annots = {
} # annotations that we want to include in the final dataset
if args.tier2:
print("tier2 sequences have been provided")
if '.fa' in args.tier2 or '.fasta' in args.tier2:
print("tier2 sequences are FASTA file")
tier2db = sequence.readFastaFile(args.tier2,
sequence.Protein_Alphabet,
ignore=True,
parse_defline=False)
print(str(len(tier2_list)) + " sequences in tier2")
tier2_list = {} # map from "long" name to actual entry
tier2_map_short = {} # map from "short" name to entry
for s in tier2db:
tier2_list[s.name] = s
tier2_map_short[sequence.parseDefline(s.name)[0]] = s
else:
print("Please provide FASTA file for tier-2")
if args.tier1:
tier1 = {}
tier1_annots = {
} # annotations that we want to include in the final dataset
print("Tier-1 sequences have been provided")
if '.fa' in args.tier1 or '.fasta' in args.tier1:
print("Tier-1 sequences are provided as a FASTA file")
tier1db = sequence.readFastaFile(args.tier1,
sequence.Protein_Alphabet,
ignore=True,
parse_defline=False)
tier1_list = {}
for s in tier1db:
tier1_list[s.name] = "".join(s.sequence)
print("Tier-1 has " + str(len(tier1_list)) + " sequences")
else:
print("Please provide FASTA file for tier-1")
db100 = sequence.readFastaFile(args.input,
sequence.Protein_Alphabet,
ignore=True,
parse_defline=False)
db100_map = {} # map from "long" name to actual entry
db100_map_short = {} # map from "short" name to entry
for s in db100:
db100_map[s.name] = s
db100_map_short[sequence.parseDefline(s.name)[0]] = s
print("Database has " + str(len(db100_map)) + " sequences")
for rr in args.redundancy:
rs = str(rr)
os.system('cd-hit -i ' + args.input + ' -c 0.' + rs + ' -T 5 -o db' +
rs + ' -d 0')
selected = {}
for rr in args.redundancy:
selected[rr] = []
filename = 'db' + str(rr) + '.clstr'
clusters = readCDHIT(filename)
for c in clusters:
picked_one = False
shortest = None
reviewed = None
for name in clusters[c]:
if name in db100_map:
seq = db100_map[name]
if shortest:
if len(seq) < len(shortest) and not disqualified(
seq, args):
shortest = seq
elif not disqualified(seq, args):
shortest = seq
if seq.name.startswith('sp|') and not disqualified(
seq, args):
reviewed = seq
if name in tier1_list:
#print("this one orig" + str(seq))
selected[rr].append(seq)
picked_one = True
else:
pass
#print('Did not find', name)
# If no Tier-1, prefer "reviewed", then shortest length
if not picked_one and reviewed:
selected[rr].append(reviewed)
elif not picked_one and shortest:
selected[rr].append(shortest)
for rr in args.redundancy:
filename = 'db' + str(rr) + '.fa'
sequence.writeFastaFile(filename, selected[rr])
for rr in args.redundancy:
os.system('makeblastdb -dbtype prot -in db' + str(rr) +
'.fa -out db-' + str(rr))
# for rr in args.redundancy:
# for evalue in args.evalue:
# result_file = "dataset-" + str(rr) + '-'+ str(evalue)
# cmd1 = "blastp -db db-" + str(rr) + " -outfmt 3 -num_descriptions 20000 -num_alignments 0 -num_threads 5 -query " + args.tier1 + " -out " + result_file + ".txt -evalue " + str(evalue)
# print(cmd1)
# os.system(cmd1)
grab = False
for rr in args.redundancy:
for evalue in args.eval:
c = 0
tpsIdentifier = set([])
seqs = []
result_file = "dataset-" + str(rr) + '-' + str(evalue)
f = open(result_file + '.txt', 'rt')
for row in f:
if row.startswith('Sequences'):
grab = True
continue
if grab == True:
if row.startswith('Lambda'):
grab = False
if not row.strip() == "":
identifier = row.split(' ')[0]
if identifier != "Lambda":
tpsIdentifier.add(identifier)
for name in tpsIdentifier:
try:
seq = db100_map[name]
info = ''
seqs.append(
sequence.Sequence(seq.sequence, seq.alphabet, seq.name,
info))
except:
pass
sequence.writeFastaFile(result_file + ".fa", seqs)
print(result_file + " has " + str(len(seqs)) + "sequences")
print('Done')
totalSeqCount = []
c = 0
for evalue in args.eval:
for rr in args.redundancy:
output = []
ev = str(evalue)
ev = ev[1:]
red = str(rr)
result_file = "dataset-" + str(rr) + '-' + str(evalue)
a = sequence.readFastaFile(result_file + '.fa',
sequence.Protein_Alphabet,
ignore=True,
parse_defline=False)
names = set([])
for s in a:
names.add(s.name)
tier1_cnt = 0
tier2_cnt = 0
seqs = []
for name in names:
try:
seq = db100_map[name]
info = ''
if name in tier1_list:
tier1_cnt += 1
#info = seq.info + ' ' + tier1_annots[name]
elif name in tier2:
tier2_cnt += 1
#info = seq.info + ' ' + tier2_annots[name]
seqs.append(
sequence.Sequence(seq.sequence, seq.alphabet, seq.name,
info))
except:
pass
#print('Did not find', name)
print('Processed', len(seqs), 'for', result_file, ' Tier-1:',
tier1_cnt, ' Tier-2:', tier2_cnt)
output = [ev, red, len(seqs)]
totalSeqCount.append(output)
plotSeqs(totalSeqCount)
'''
Created on 30/03/2014
@author: jacekrad
'''
import sequence as seq
import util
q6b_filename="q6b.fasta"
util.searchAndSave("surface+protein+AND+organism:1280", q6b_filename)
sequences = seq.readFastaFile(q6b_filename)
print len(sequences), " total sequences"
matched_sequences = []
for sequence in sequences:
if "RAFKPS" in str(sequence.sequence):
matched_sequences.append(sequence)
""" print the final results """
print len(matched_sequences), " matched sequences:"
for sequence in matched_sequences:
print sequence
f.write('\n')
f.close()
if __name__ == '__main__':
if len(sys.argv) != 4:
print('Usage: evodiv <tree> <alignment> <nodes> where', \
"\n\t<tree> is a completely labelled Newick file of a phylogenetic tree", \
"\n\t<alignment> is a FASTA or Clustal file with a sequence for each label in tree", \
"\n\t<nodes> is a FASTA file with a sequence entry for each label for which a variability is determined", \
"\n\tVariability is saved to file with the sequence entry's name .txt")
sys.exit(1)
tree = phylo.readNewick(sys.argv[1])
try:
seqs = sequence.readFastaFile(sys.argv[2],
alphabet=sequence.Protein_wX,
gappy=True)
aln = sequence.Alignment(seqs)
except:
aln = sequence.readClustalFile(sys.argv[2],
sequence.Protein_Alphabet_wX)
tree.putAlignment(aln)
select = sequence.readFastaFile(sys.argv[3],
alphabet=sequence.Protein_wX,
gappy=True)
nodes = []
for selected in select:
nodename = selected.name
nodes.append(nodename)
for nodename in nodes:
node = tree.findLabel(nodename)
def main():
parser = argparse.ArgumentParser()
parser.add_argument("-i",
"--input",
help="FASTA file to query from",
required=True)
parser.add_argument("-q",
"--query",
help="Query FASTA file",
required=True)
parser.add_argument("-db",
"--database",
help="Database output file name",
required=True)
parser.add_argument("-r",
"--reference",
help="Reference database ",
default="uniprotkb")
parser.add_argument("-o",
"--output",
help="Output path",
default="matchmyseqs")
args = parser.parse_args()
seqDict = {}
tier1seq = ''
representative = ''
fasta = {}
seqsforCSV = {}
progress = 0
tier1 = {}
tier1_annots = {
} # annotations that we want to include in the final dataset
os.system('makeblastdb -dbtype prot -in ' + args.input + ' -out ' +
args.database)
db = sequence.readFastaFile(args.input,
sequence.Protein_Alphabet,
ignore=True,
parse_defline=False)
db_map = {} # map from "long" name to actual entry
db_map_short = {} # map from "short" name to entry
for s in db:
db_map[s.name] = s
db_map_short[sequence.parseDefline(s.name)[0]] = s
print("Database size is " + str(len(db_map)))
print(
"Blast started, this might take a bit depending on your dataset size")
os.system("blastp -db " + args.database +
" -outfmt 3 -num_descriptions 1 -num_alignments 0 -query " +
args.query + " -out query.txt")
if args.reference == 'uniprotkb':
os.system(
"grep -e \"^[st][pr]|\" query.txt | cut -d\' \' -f1 > UniProt_query.tab"
)
# Extract the resulting sequence identifiers
repSeqNames = set([])
f = open('UniProt_query.tab', 'rt')
for row in f:
repSeqNames.add(sequence.parseDefline(row.strip())[0])
f.close()
print(str(len(repSeqNames)),
" representative sequences have been found")
#Annot the representative sequences
notfound = []
for name in repSeqNames:
if name in db_map_short:
s = db_map_short[name]
seqsforCSV[s.name] = "".join(s)
else:
notfound.append(name)
print('Matched',
len(repSeqNames) - len(notfound), 'of', len(repSeqNames))
with open("query.txt", newline='') as f:
reader = csv.reader(f)
for row in reader:
if len(row) > 0 and row[0].startswith('Query'):
querySeq = (str(row).split("=")[1][:-2].strip())
elif len(row) > 0 and (row[0].startswith('tr|')
or row[0].startswith('sp|')):
representative = (str(row).split(" ")[0][2:].strip())
seqDict[querySeq] = representative
elif args.reference == 'refseq':
grab = False
repSeqNames = set([])
with open("query.txt", newline='') as f:
reader = csv.reader(f)
for row in reader:
if len(row) > 0 and row[0].startswith('Query'):
querySeq = (str(
row[0]).split("=")[1][:-2].strip().split(" ")[0])
elif len(row) > 0 and row[0].startswith('Sequences'):
grab = True
continue
elif grab == True:
if len(row) > 0 and not row[0].strip() == "":
representative = (row[0].split('.')[0] + "." +
row[0].split('.')[1].split(" ")[0])
repSeqNames.add(representative)
seqDict[querySeq] = representative
grab = False
#print(len(repSeqNames))
notfound = []
for name in repSeqNames:
if name in db_map_short:
s = db_map_short[name]
seqsforCSV[s.name] = "".join(s)
else:
notfound.append(name)
print('Matched',
len(repSeqNames) - len(notfound), 'of', len(repSeqNames))
print(len(repSeqNames),
" representative sequences found for " + args.query)
# done25 = False
# done50 = False
# done75 = False
# for s,rep in seqDict.items():
# total = (len(seqDict))
# seq = (sequence.getSequence(rep,'uniprotkb'))
# seqsforCSV[rep] = str(seq).split(":")[1].strip()
# elem = rep + str(seq)
# progress+=1
# if (progress/total)*100 > 25 and not done25:
# print("25% done")
# done25 = True
# elif (progress/total)*100 > 50 and not done50:
# print("50% done")
# done50 = True
# elif (progress/total)*100 > 75 and not done75:
# print("75% done")
# done75 = True
faOut = args.output + '.fa'
seq_list = [
sequence.Sequence(sequence=seq, name=seqname)
for seqname, seq in seqsforCSV.items()
]
sequence.writeFastaFile(faOut, seq_list)
csvOut = args.output + '.csv'
with open(csvOut, 'w', newline='') as f:
fieldnames = ['Name', 'Representative', 'Sequence']
thewriter = csv.DictWriter(f, fieldnames=fieldnames)
thewriter.writeheader()
for given, rep in seqDict.items():
thewriter.writerow({
'Name': given,
'Representative': rep,
'Sequence': seqsforCSV[rep]
})
JASPAR_FILE = "JASPAR_matrices.txt"
for o, a in optlst:
if o == "-h":
usage(sys.argv[0])
elif o == "-f":
FILENAME = a
elif o == "-d":
DISCOVER_MODE = True
elif o == "-w":
WORD_WIDTH = int(a)
elif o == "-p":
PEAK_WIDTH = int(a)
elif o == "-m":
PEAK_MARGIN = int(a)
elif o == "-s":
SCAN_MODE = True
MOTIF_ID = a
elif o == "-j":
JASPAR_FILE = a
if FILENAME == None:
usage(sys.argv[0], "Filename not specified")
sys.exit(3)
seqs = sequence.readFastaFile(FILENAME, sym.DNA_Alphabet_wN)
if DISCOVER_MODE:
print "Discover (f=%s; w=%d; p=%d; m=%d)" % (FILENAME, WORD_WIDTH, PEAK_WIDTH, PEAK_MARGIN)
countWordsReport(seqs, WORD_WIDTH, PEAK_WIDTH, PEAK_MARGIN)
elif SCAN_MODE:
scanMotifReport(seqs, MOTIF_ID)
else:
usage(sys.argv[0], "No run mode selected")
def run_qscore(name,
aln_type,
parameters,
specific_files=None,
save=False,
outpath=""):
base_dir = "./bench1.0/" + name
in_dir = base_dir + "/in/"
ref_dir = base_dir + "/ref/"
out_dir = "./qscore_alignments/" + aln_type + "_" + name
qscore_dict = defaultdict(dict)
files = os.listdir(in_dir)
file_count = 0
start_time = timeit.default_timer()
now = datetime.now()
dt_string = now.strftime("%Y/%m/%d_%H:%M")
# Add trailing slash to output directory if it isn't there
outpath = outpath + "/" if outpath[-1] != "/" else outpath
param_name = f"t={parameters['tau']}e={parameters['epsilon']}d={parameters['delta']}x={parameters['emissionX']}y={parameters['emissionY']}"
output_file = "./qscore_alignments/" + aln_type + "_" + name + param_name + ".csv"
if os.path.exists(outpath + name + ".p"):
curr_dict = pickle.load(open(outpath + name + ".p", "rb"))
else:
curr_dict = {param_name: {}}
if os.path.exists(outpath + name + "_best.p"):
best_dict = pickle.load(open(outpath + name + "_best.p", "rb"))
else:
best_dict = {}
if os.path.exists(outpath + "time.p"):
time_dict = pickle.load(open(outpath + "time.p", "rb"))
else:
time_dict = {}
failures = []
with open(output_file, 'w+') as output:
writer = csv.writer(output,
delimiter=',',
quotechar='"',
quoting=csv.QUOTE_MINIMAL)
writer.writerow(['Tool', 'Dataset', 'Name', 'Q', 'TC', 'M', 'C'])
# If we don't already have a directory created to save the alignments, lets make one
if not os.path.exists(out_dir):
os.makedirs(out_dir)
for file in files:
failed = False
if file != ".DS_Store":
seqs = sequence.readFastaFile(in_dir + file,
alphabet=Protein_Alphabet_wB_X_Z)
for seq in seqs:
if any(skip in seq.sequence for skip in aa_skip):
print("failed on " + seq.name)
failures.append(file)
failed = True
if not failed:
qscore_dict[file] = defaultdict(dict)
if not specific_files or file in specific_files:
if param_name not in curr_dict:
curr_dict[param_name] = {}
# print (curr_dict)
file_count += 1
single_time = timeit.default_timer()
print(file)
# change_params = {'tau': 0.000002, 'epsilon': 0.0001, 'delta': 0.0002, 'emissionX': 0.2, 'emissionY':
# 0.2}
# change_params = {'tau': 0.00000000002, 'epsilon': 0.000175, 'delta': 0.00031, 'emissionX':
# 0.002,
# 'emissionY':
# 0.002}
#
# change_params = {'tau': 0.1, 'epsilon': 0.02, 'delta': 0.01, 'emissionX':
# 0.5,
# 'emissionY':
# 0.5}
# Update parameters using Baum Welch
for seq_order in list(itertools.combinations(seqs, 2)):
profiles = [
aln_profile.AlignmentProfile([x])
for x in seq_order
]
# change_params = bw.runBaumWelch(parameters, profiles, aln_type)
print(parameters)
# print (change_params)
aligned_profile = align.align_seqs(
in_dir + file,
out_dir + "/" + file + ".aln",
aln_type=aln_type,
params=parameters,
subsmat=sub_matrix.blosum62EstimatedWithX_dict,
log_transform=log_transform)
process = subprocess.Popen(
"qscore -test %s -ref %s -cline -modeler" %
(out_dir + "/" + file + ".aln", ref_dir + file),
stderr=subprocess.PIPE,
stdout=subprocess.PIPE,
shell=True)
out = process.communicate()[0]
errcode = process.returncode
print('running')
print(errcode)
scores = [
x.strip()
for x in out.decode('utf-8').split(";")[2:]
]
# scores = [x.split("=")[1] for x in scores]
# print (aligned_profile)
print(file)
print('\nScores be')
print(scores)
for score in scores:
score_type = score.split("=")[0].strip()
score_value = score.split("=")[1].strip()
qscore_dict[file][score_type] = score_value
curr_dict[param_name][file] = (scores, aligned_profile)
update_best_dict(best_dict, file, scores, param_name)
if scores and "=" in scores[0]:
writer.writerow([
aln_type + "_" + param_name + "_log=" +
str(log_transform), name, file,
scores[0].split("=")[1],
scores[1].split("=")[1],
scores[2].split("=")[1],
scores[3].split("=")[1]
])
else:
failures.append(file)
# if file not in curr_dict[param_name].keys():
# curr_dict[param_name][file] = (scores, aligned_profile)
# else:
# curr_dict[param_name][file] = (scores, aligned_profile)
#
total_seconds = timeit.default_timer() - start_time
single_seconds = timeit.default_timer() - single_time
if save:
pickle.dump(
curr_dict,
open(outpath + aln_type + "_" + name + ".p",
"wb"))
pickle.dump(
best_dict,
open(
outpath + aln_type + "_" + name +
"_best.p", "wb"))
if save:
if name in time_dict:
if total_seconds < time_dict[name][0]:
time_dict[name] = (total_seconds, dt_string)
print("New best time - " +
utilities.format_time(total_seconds))
else:
time_dict[name] = (total_seconds, dt_string)
print("New best time - " +
utilities.format_time(total_seconds))
pickle.dump(
time_dict,
open(outpath + aln_type + "_" + "time.p", "wb"))
print('These files failed ')
print(failures)
return qscore_dict
import mea_poa.parameters as parameters
import mea_poa.sub_matrix as sub_matrix
import itertools
import mea_poa.alignment_profile as aln_profile
import mea_poa.baum_welch as bw
import sequence
from sym import Alphabet
Protein_Alphabet_wB_X_Z = Alphabet('ABCDEFGHIKLMNPQRSTVWYXZ')
alignment = 'Not calculated'
po_alignment = 'Not calculated'
# seq = "../../tests/files/simple_seqs/borodovsky.fasta"
#
seq = "../../tests/files/custom_seqs/tree_check.fasta"
seqs = sequence.readFastaFile(seq, alphabet=Protein_Alphabet_wB_X_Z)
change_params = {
'tau': 0.02,
'epsilon': 0.05,
'delta': 0.02,
'emissionX': 0.92,
'emissionY': 0.2
}
change_params = {
'tau': 0.002,
'epsilon': 0.05,
'delta': 0.02,
'emissionX': 0.5,
'emissionY': 0.5
