def print_vkey(self, snpcnt):
DBINDEX = ['EXAC','SNPDB','KGDB','ESP','CLINVARDB','CLINVITAE',\
'REGULOME','CLNPHESNP','HGMDDB',\
'COSMIC','NSFP','SPLICE','MIRNA','OMIM']
if self.vKeys:
for cVkey in self.vKeys.itervalues():
cols = [
snpcnt, cVkey.chrom, cVkey.pos, cVkey.ref, cVkey.alt,
lib_utils.joined(cVkey.rsids, ',')
]
for tb in DBINDEX:
tbIdx = cVkey.dbs[tb]
if isinstance(tbIdx, list):
tbIdx = lib_utils.joined(list(set(tbIdx)), ',')
if not tbIdx:
tbIdx = 'NULL'
cols.append(tbIdx)
else:
if not tbIdx:
tbIdx = 'NULL'
cols.append(tbIdx)
self.fpw.write('%s\n' % (lib_utils.joined(cols, '\t')))
del cols
self.cleanup()
def to_file(rows,Header,out_fn,fmode='wb'):
#check if out_fn can be writable
fp2 = anyopen.openfile(out_fn,fmode)
if isinstance(Header,basestring):
headStr = Header
else:
headStr = lib_utils.joined(Header,'\t')
fp2.write('#%s\n'%headStr)
if len(rows)>0:
decimal_idx = get_decimal_idx(rows[0])
fix_record = False
if len(decimal_idx)>0:
fix_record = True
for i, r in enumerate(rows):
r = list(r)
if fix_record:
r = reformat_fields(r, decimal_idx)
fp2.write('%s\n'%lib_utils.joined(r,'\t'))
fp2.close()
def gdna_to_vcf(self, mutalyzer_batch_outfn):
if not os.path.exists(mutalyzer_batch_outfn):
raise RuntimeError('check if input file [%s] exists'%\
mutalyzer_batch_outfn)
cHgvs = Hgvs2()
cHgvs.load_resource()
fp = open(mutalyzer_batch_outfn, 'r')
fp.next()
gdna_cache = {}
for mutalyzer in fp:
mut = mutalyzer.split('\t')
if mut[1].strip(): continue
gdna = mut[2].strip()
variants = cHgvs.gdna_to_vcf(gdna)
if variants:
gdna_cache[mut[0].strip()] = variants
fp.close()
self.out_vcf = lib_utils.file_tag(self.tsv, None, 'vcf')
tmp_vcf = self.out_vcf + '.tmp'
fpw = open(tmp_vcf, 'w')
self._write_vcf_head(fpw)
qual = 100
filter = 'PASS'
rsid = '.'
for cvt in self._iterfile():
if self.may_pass(cvt): continue
if cvt.nt_change not in gdna_cache: continue
for chrom, pos, ref, alt in gdna_cache[cvt.nt_change]:
if len(ref) > 100 or len(alt) > 100: continue
info = 'cDNA=%s;' % cvt.nt_change
info += 'VC=%s;' % self.determine_vclass(cvt.rep_class)
info += 'SRC=%s;' % cvt.source
info += 'UPD=%s;' % cvt.last_upd
info += 'URL=%s' % cvt.url
if chrom.startswith('chr'):
if chrom.startswith('chrM'): chrom = 'MT'
else: chrom = chrom[3:]
cols = [chrom, pos, rsid, ref, alt, qual, filter, info]
fpw.write('%s\n' % lib_utils.joined(cols, '\t'))
fpw.close()
lib_utils.sort_tsv_by_col2(tmp_vcf,[1,2],\
['V','n'],False,self.out_vcf)
os.unlink(tmp_vcf)
def print_header(self, tsv):
DBINDEX = [['EXAC', 'snps', 'idx', []], ['SNPDB', 'snps', 'idx', []],
['KGDB', 'snps', 'idx', []], ['ESP', 'snps', 'idx', []],
['CLINVARDB', 'snps', 'idx', []],
['CLINVITAE', 'snps', 'idx', []],
['REGULOME', 'regulome', 'idx', []],
['CLNPHESNP', 'clnsnp', 'idx', []],
['HGMDDB', 'snps', 'idx', []],
['COSMIC', 'snps', 'idx', []], ['NSFP', 'nsfp', 'idx', []],
['SPLICE', 'splice', 'idx', []],
['MIRNA', 'mirna', 'idx', []], ['OMIM', 'omim', 'idx', []]]
heads = ['variant_index', 'chrom', 'pos', 'ref', 'alt', 'rsid']
fpw = open(tsv, 'w')
for dbindex in DBINDEX:
heads.append('%s' % ('.'.join(dbindex[:-1])))
fpw.write('#%s\n' % (lib_utils.joined(heads, '\t')))
return fpw
def run_cmd(self, cmd, job_name=None):
cmd_str = lib_utils.joined(cmd, ' ')
lib_utils.msgout('notice', cmd_str) #debug
self.logger.info('running [%s] ...' % cmd_str)
if job_name:
stdofp, stdefp = self.get_process_msg_handler(job_name)
else:
stdofp = sp.PIPE
stdefp = sp.PIPE
proc = sp.Popen(cmd_str, stdout=stdofp, stderr=stdefp, shell=True)
retcode = proc.wait()
if job_name:
stdofp.close()
stdefp.close()
if retcode > 0:
self.logger.error('[%s] failed' % cmd_str)
raise RuntimeError('[%s] failed' % cmd_str)
self.logger.info('done. [%s]' % job_name)
def gene_ontology_enrichment(self):
'''
Objective:Gene-ontology enrichment (select private members of purturbed gene that highly matched with phenotypic-scored genes and assign predicted phenotypic score instead of assigning de-novo prior)
Input:
-pheno_dmg = {gene1:0.2,gene2:0.9,...} #e.g. phenotype score
-genetic_dmg = {gene2:0.4,gene3:0.3,...} #e.g. genetic score
'''
job_name = 'gene_ontology_enrichment'
msg = 'enriching perturbed genes with GO semantic similarity [%s] ...' % job_name
lib_utils.msgout('notice', msg)
self.logger.info(msg)
# collect genes from both phenotype and genotype perturbation
pgenes = list(self.pheno_dmg.keys())
P = len(pgenes)
msg = 'total phenotypic genes before enrichment:%d' % P
lib_utils.msgout('notice', msg, job_name)
self.logger.info(msg)
ggenes = list(self.genetic_dmg.keys())
msg = 'total perturbed genes:%d' % len(ggenes)
lib_utils.msgout('notice', msg, job_name)
self.logger.info(msg)
# draw a venn diagram and get genes not reported by phenotypes among genetic dmg genes
priv_ggenes = lib_utils.difference(pgenes, ggenes)
msg = 'the number of genes not associated with the given phenotypes:%d' % len(
priv_ggenes)
lib_utils.msgout('notice', msg, job_name)
self.logger.info(msg)
# to collect genes highly matched to do GO enrichment
pgenes2 = self.get_GO_seeds(self.dm.seed_rate) #update self.go_seeds
#query high-scored phenotype genes against private genetic-perturbed genes and bring high-matched ones
msg = 'quering total [%d] seed phenotype genes into SQL ...' % len(
pgenes2)
lib_utils.msgout('notice', msg, job_name)
self.logger.info(msg)
go = geneontology.Geneontology()
goSimScores = go.get_funsim(pgenes2,
priv_ggenes,
min_score=self.dm.gosim_min)
# updating the original phenotype damage score
# weighting enriched phenotype matching score to the gene not reported in the original phenotypes
pheno_delta = []
for pair, go_sc in goSimScores.iteritems():
#search for a gene matched to seed pheno gene
if pair[0] not in self.pheno_dmg:
gene_enriched = pair[0]
seed_sc = self.pheno_dmg[pair[1]]
elif pair[1] not in self.pheno_dmg:
gene_enriched = pair[1]
seed_sc = self.pheno_dmg[pair[0]]
#initialize score
if gene_enriched not in self.pheno_dmg:
self.pheno_dmg[gene_enriched] = 0.
#keep only maximum
indirect_sc = seed_sc * go_sc * self.dm.go_penalty
if indirect_sc > self.pheno_dmg[gene_enriched]:
self.pheno_dmg[gene_enriched] = indirect_sc
if gene_enriched not in pheno_delta:
pheno_delta.append(gene_enriched)
P_delta = len(self.pheno_dmg.keys()) - P
msg = 'Total %d perturbed genes are added by phenotype gene enrichment!\ndone. [%s]' % (
P_delta, job_name)
lib_utils.msgout('notice', msg)
self.logger.info(msg)
msg = 'genes enriched by GO:[%s]' % lib_utils.joined(pheno_delta, ',')
lib_utils.msgout('notice', msg)
self.logger.info(msg)
def reformat_to_lite(self, infile, vtype, outfile, min_cnt=1):
jobname = "reformat_to_lite"
msg = "working on vcf file [%s] ..." % infile
print msg
infoKeys = ['GENE', 'STRAND', 'CDS', 'AA', 'SNP']
v = vcf.VCFParser(infile)
v.add_meta_info('COSMIC_ID', '.', 'String', 'cosmic ID')
v.add_meta_info('REG', '2', 'Integer', '1:coding, 0:noncoding')
if not os.path.exists(outfile):
ostream = open(outfile, 'w')
v.writeheader(ostream, to_del_info=infoKeys)
else:
ostream = open(outfile, 'a')
pk0 = 'NA'
cosmics = []
cnts = []
prev_rec = None
for rec in v:
v.parseinfo(rec)
pk = lib_utils.joined([rec.chrom, rec.pos, rec.ref, rec.alt], '_')
if pk != pk0:
pk0 = pk
if prev_rec:
prev_rec.id = '.'
prev_rec.info['COSMIC_ID'] = cosmics
prev_rec.info['REG'] = vtype
for info_key in infoKeys:
v.delete_info(prev_rec, info_key)
if vtype == NONCODING:
prev_rec.info['CNT'] = '1'
v.write(ostream, prev_rec)
cosmics = [rec.id[0]]
prev_rec = rec
else:
pk0 = pk
cosmics.append(rec.id[0])
if prev_rec:
prev_rec.id = '.'
prev_rec.info['COSMIC_ID'] = cosmics
prev_rec.info['REG'] = vtype
for info_key in infoKeys:
v.delete_info(prev_rec, info_key)
if vtype == NONCODING:
prev_rec.info['CNT'] = '1'
v.write(ostream, prev_rec)
ostream.close()
v.stream.close()
msg = "Done [%s]." % jobname
print msg
def enrich_pheno_genes(self, ggenes):
'''
Objective:Gene-ontology enrichment (select private members of purturbed gene that highly matched with phenotypic-scored genes and assign predicted phenotypic score instead of assigning de-novo prior)
Input:
-pheno_dmg = {gene1:0.2,gene2:0.9,...} #e.g. phenotype score
-genetic_dmg = {gene2:0.4,gene3:0.3,...} #e.g. genetic score
'''
job_name = 'enrich_pheno_genes'
msg = 'enriching perturbed genes with both GO semantic similarity and KEGG pathways [%s] ...' % job_name
lib_utils.msgout('notice', msg);
self.logger.info(msg)
# collect genes from both phenotype and genotype perturbation
pgenes = list(self.pheno_dmg.keys()) # assuming that it's score >0
P = len(pgenes)
msg = 'total phenotypic genes before enrichment:%d' % P
lib_utils.msgout('notice', msg, job_name);
self.logger.info(msg)
msg = 'total perturbed genes:%d' % len(ggenes)
lib_utils.msgout('notice', msg, job_name);
self.logger.info(msg)
# draw a venn diagram and get genes not reported by phenotypes among genetic dmg genes
priv_ggenes = lib_utils.difference(pgenes, ggenes)
msg = 'the number of genes not associated with the given phenotypes:%d' % len(priv_ggenes)
lib_utils.msgout('notice', msg, job_name);
self.logger.info(msg)
# to collect genes highly matched to do GO enrichment
# Gene-ontology enrichment (select private members of purturbed gene that highly matched with phenotypic-scored genes and assign predicted phenotypic score instead of assigning de-novo prior)
seed_pheno_genes, seed_scores, _ = \
self.get_seed_genes(self.dm.go_seed_k)
# query high-scored phenotype genes against private genetic-perturbed genes and bring high-matched ones
msg = 'Using [%d] seed genes to enrich [%d] genetic variant genes with GO similarity ...' % (len(seed_pheno_genes),len(priv_ggenes))
lib_utils.msgout('notice', msg, job_name);
self.logger.info(msg)
go = geneontology.Geneontology()
goSimScores = go.get_funsim(seed_pheno_genes, priv_ggenes, min_score=self.dm.gosim_min)
msg = 'Using [%d] seed genes to enrich [%d] genetic variant genes with KEGG similarity ...' % (len(seed_pheno_genes), len(priv_ggenes))
lib_utils.msgout('notice', msg, job_name);
self.logger.info(msg)
# updating the original phenotype damage score
# weighting enriched phenotype matching score to the gene not reported in the original phenotypes
delta_pheno = {}
if goSimScores:
msg = 'Collecting [%d] GO enriched genes, enrichment_penality_ratio [%g] ...' % (len(goSimScores),self.dm.go_penalty)
lib_utils.msgout('notice', msg, job_name);
self.logger.info(msg)
for pair, go_sc in goSimScores.iteritems():
# search for a gene matched to seed pheno gene
if pair[0] in priv_ggenes:
new_gene = pair[0]
seed_gene = pair[1]
else:
new_gene = pair[1]
seed_gene = pair[0]
score2 = go_sc * self.dm.go_penalty * self.pheno_dmg[seed_gene].score
if score2 > 0.:
# register enriched genes
if new_gene not in delta_pheno:
delta_pheno[new_gene] = lib_utils.py_struct(go=[0., None, None],
kegg=[0.,0.],
score=0.)
delta_pheno[new_gene].go[2] = self.pheno_dmg[seed_gene].disId
if score2 > delta_pheno[new_gene].go[0]: #keep only max score
delta_pheno[new_gene].go[0] = score2
delta_pheno[new_gene].go[1] = seed_gene
delta_pheno[new_gene].go[2] = self.pheno_dmg[seed_gene].disId
delta_pheno[new_gene].score = delta_pheno[new_gene].go[0]
msg = 'Genes enriched by GO similarity:[%s]' % lib_utils.joined(delta_pheno.keys(), ',')
lib_utils.msgout('notice', msg)
self.logger.info(msg)
seed_pheno_genes, seed_scores, mean_seed_score = \
self.get_seed_genes(self.dm.go_seed_k * 4) # update self.go_seeds
msg = 'Using [%d] seed genes to enrich [%d] genetic variant genes with KEGG pathway genes ...' % (
len(seed_pheno_genes), len(priv_ggenes))
lib_utils.msgout('notice', msg, job_name);
self.logger.info(msg)
# query seed_pheno_genes to KEGG matrix and normalize the matched genes and ranking!
keggEnriched = run_bp(seed_pheno_genes, seed_scores, priv_ggenes, kegg_genes_fn=self.entries['kegg_hsa'])
if keggEnriched:
msg = 'Collecting [%d] KEGG enriched genes with mean seed score [%g]...' % (len(keggEnriched),mean_seed_score)
lib_utils.msgout('notice', msg, job_name);
self.logger.info(msg)
for kgene, kscore in keggEnriched.iteritems():
# search for a gene matched to seed pheno gene
score2 = kscore * mean_seed_score
if score2 > 0.:
# register enriched genes
if kgene not in delta_pheno:
delta_pheno[kgene] = lib_utils.py_struct(go=[0., None, None],
kegg=[0],
score=0.)
if score2 > delta_pheno[kgene].kegg[0]: #keep only max score and sum two enriched scores
delta_pheno[kgene].kegg[0] = score2
delta_pheno[kgene].score = delta_pheno[kgene].go[0] + delta_pheno[kgene].kegg[0]
msg = 'Genes enriched by KEGG bipartite network difussion:[%s]' % lib_utils.joined(keggEnriched.keys(), ',')
lib_utils.msgout('notice', msg)
self.logger.info(msg)
max_score = -1.
max_seed_gene = None
msg = 'Total [%d] mutated genes that did not have any phenotype score previously are enriched. Assigning a new phenotype score to each enriched gene ...' % len(delta_pheno)
lib_utils.msgout('notice', msg, job_name)
self.logger.info(msg)
if delta_pheno:
for gene, deltaP in delta_pheno.iteritems():
if deltaP.score > max_score:
max_score = deltaP.score
if deltaP.go[1]:
max_seed_gene = deltaP.go[1]
if max_score > 0:
if max_seed_gene:
max_enriched_score = self.pheno_dmg[max_seed_gene].score
else:
max_seed_gene = self.get_max_pheno_dmg()
max_enriched_score = self.pheno_dmg[max_seed_gene].score
max_scaled = max_enriched_score * self.dm.go_penalty * 2
for ngene,deltaP in delta_pheno.iteritems():
self.pheno_dmg[ngene] = PhenoGene()
self.pheno_dmg[ngene].score = delta_pheno[ngene].score*max_scaled/max_score
self.pheno_dmg[ngene].disId = deltaP.go[2]
if deltaP.go[2]:
self.omim.cDis[deltaP.go[2]].enriched_genes[ngene] = None
if deltaP.go[1]:
self.omim.cDis[deltaP.go[2]].enriched_genes[ngene] = deltaP.go[1]
msg = 'max scaled phenotype score[%g], raw max enriched score[%g]' % (max_scaled,max_score)
lib_utils.msgout('notice', msg, job_name)
self.logger.info(msg)
def create_disease_rank_tab(self):
fpw = open(self.dv.disease_rank_fn, 'w')
headStr = """
disease_ID
disease_description
inheritance
assoc_pheno_genes(^:mutated,*:known_pathogenic)
num_of_assoc_pheno_genes
num_of_gt_dmg_genes
pheno_match_score
avg_combined_dmg_score
max_combined_dmg_score
avg_harmonic_score
max_harmonic_score
external_genes_of_interest(kegg-ppi_or_GO_enriched[harmonic_score])
PPI-KEGG_pathway_desc
"""
headCols = headStr.split()
cell_delim = ';'
fpw.write('#%s\n' % lib_utils.joined(headCols, '\t'))
#
cKegg = kegg_pathway.Kegg(hsa_fn=self.dv.entries['kegg_hsa'])
cKegg.get_hsa()
#annotate kegg_pathway to disease
self.dv.omim.to_kegg_hsa(cKegg.cHsa)
#browsing whole known disease entries whose HPO sim score with the patient > 0.
for cD in self.dv.omim.cDis.itervalues():
if cD.pheno_score == 0.: continue
to_print = []
to_print.append(cD.id) #disID
to_print.append(cD.desc) #disDesc
to_print.append(divine_inc.inheritStr[cD.inherit]) #inheritance
Genes = [[], []]
max_rw_score = [0., 0.]
sum_rw_score = [0., 0.]
cnt_gene_dmg = 0
gt2_dmg = None
for gene in cD.genes: #for each gene assoc with the disease
#split into two groups (one having gt_dmg, or else), and collect max & sum act score
if gene in self.dv.gt_dmg:
if self.dv.vknown and gene in self.dv.vknown_genes:
Genes[0].append('%s*' % gene)
else:
Genes[0].append('%s^' % gene)
if self.dv.gene_dmg[gene][0] > max_rw_score[0]:
max_rw_score[0] = self.dv.gene_dmg[gene][0]
sum_rw_score[0] += self.dv.gene_dmg[gene][0]
else:
Genes[1].append(gene)
#to collect max & sum on harmonic scores
if gene in self.dv.gene_dmg:
if self.dv.gene_dmg[gene][1] > max_rw_score[1]:
max_rw_score[1] = self.dv.gene_dmg[gene][1]
sum_rw_score[1] += self.dv.gene_dmg[gene][1]
cnt_gene_dmg += 1
#bring KEGG genes (PPI) interacted with non-mutated phenotype genes
goi,hsa_desc = self.external_goi(\
Genes[1],cD.kegg_hsa,cKegg.cHsa)
#bring GO enriched genes
for gene2 in cD.enriched_genes:
geneStr2 = 'go(%s:%s' % (cD.enriched_genes[gene2], gene2)
if self.dv.vknown and (gene2 in self.dv.vknown_genes):
geneStr2 = geneStr2 + '*'
else:
geneStr2 = geneStr2 + '^'
if gene2 in self.dv.gene_dmg:
goi.append('%s[%g])' % \
(geneStr2,self.dv.gene_dmg[gene2][1]))
to_print.append(cell_delim.join(Genes[0] +
Genes[1])) #assoc_pheno_genes
G = len(cD.genes)
G_mt = len(Genes[0])
to_print.append(G) #num_of_assoc_pheno_genes
to_print.append(G_mt) #num_of_gt_dmg_genes
to_print.append(cD.pheno_score) #pheno_match_score
if G_mt > 0:
to_print.append(sum_rw_score[0] /
G_mt) #avg_combined_dmg_score
else:
to_print.append(0.)
to_print.append(max_rw_score[0]) #max_combined_dmg_score
if cnt_gene_dmg > 0:
to_print.append(sum_rw_score[1] /
cnt_gene_dmg) #avg_harmonic_score
to_print.append(max_rw_score[1]) #max_harmonic_score
else:
to_print.append(0.)
to_print.append(0.)
to_print.append(
cell_delim.join(goi)) #partner_in_protein_network_of_interest
if hsa_desc:
to_print.append(
cell_delim.join(hsa_desc)) #kegg-pathway desc if exist
else:
to_print.append('NA') #kegg-pathway desc if exist
fpw.write('%s\n' % (lib_utils.joined(to_print, '\t')))
fpw.close()
