forked from davek44/utility
-
Notifications
You must be signed in to change notification settings - Fork 0
/
gtf_homologues.py
executable file
·67 lines (53 loc) · 2.09 KB
/
gtf_homologues.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
#!/usr/bin/env python
from optparse import OptionParser
import os, subprocess, tempfile
import gff
################################################################################
# gtf_homologues.py
#
# Make a table describing candidate homologue genes as determined by a
# transmap from one genome to another.
################################################################################
################################################################################
# main
################################################################################
def main():
usage = 'usage: %prog [options] <chain_file> <net_file> <gtf_from> <gtf_to>'
parser = OptionParser(usage)
#parser.add_option()
(options,args) = parser.parse_args()
if len(args) != 4:
parser.error('Must provide chain file and two GTF files')
else:
chain_file = args[0]
net_file = args[1]
gtf_from = args[2]
gtf_to = args[3]
# transmap to new genome
from_map_gtf_fd, from_map_gtf_file = tempfile.mkstemp()
subprocess.call('chain_map.py -k gene_id -n %s %s %s > %s' % (net_file,chain_file,gtf_from,from_map_gtf_file), shell=True)
# intersect w/ gtf_to
homologues = {}
p = subprocess.Popen('intersectBed -wo -s -a %s -b %s' % (from_map_gtf_file,gtf_to), shell=True, stdout=subprocess.PIPE)
for line in p.stdout:
a = line.split('\t')
kv_to = gff.gtf_kv(a[17])
gid_from = a[8].split(';')[1].strip()
gid_to = kv_to['gene_id']
homologues.setdefault(gid_from,set()).add(gid_to)
p.communicate()
# find all genes
genes = set()
for line in open(gtf_from):
a = line.split('\t')
genes.add(gff.gtf_kv(a[8])['gene_id'])
# print table
for g in genes:
print '%s\t%s' % (g,' '.join(homologues.get(g,['-'])))
os.close(from_map_gtf_fd)
os.remove(from_map_gtf_file)
################################################################################
# __main__
################################################################################
if __name__ == '__main__':
main()