/usr/lib/transdecoder/util/cdna_alignment_orf_to_genome_orf.pl is in transdecoder 5.0.1-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 | #!/usr/bin/env perl
use strict;
use warnings;
use Carp;
use FindBin;
use lib ("$FindBin::Bin/../PerlLib");
use Gene_obj;
use GFF3_utils;
use Data::Dumper;
use Fasta_reader;
my $usage = "\nusage: $0 cdna_orfs.genes.gff3 cdna_genome.alignments.gff3 cdna.fasta [DEBUG]\n\n";
my $cdna_orfs_gff3 = $ARGV[0] or die $usage;
my $cdna_genome_gff3 = $ARGV[1] or die $usage;
my $cdna_fasta = $ARGV[2] or die $usage;
# ensure can find the inputs
foreach my $file ($cdna_orfs_gff3, $cdna_genome_gff3, $cdna_fasta) {
unless (-s $file) {
die "Error, cannot locate file: $file";
}
}
my $WARNING_COUNT = 0; # count those orfs that appear to be on strand opposite from the transcribed strand.
my $DEBUG = $ARGV[3];
main: {
print STDERR "-parsing cdna lengths\n" if $DEBUG;
my %cdna_seq_lengths = &parse_cdna_seq_lengths($cdna_fasta);
my %orf_counter;
print STDERR "-parse transcript alignment info\n" if $DEBUG;
my %cdna_acc_to_transcript_structure = &parse_transcript_alignment_info($cdna_genome_gff3);
## parse ORFs on cDNAs
print STDERR "-index $cdna_orfs_gff3\n" if $DEBUG;
my $gene_obj_indexer_href = {};
## associate gene identifiers with contig id's.
my $contig_to_gene_list_href = &GFF3_utils::index_GFF3_gene_objs($cdna_orfs_gff3, $gene_obj_indexer_href);
my %isolated_gene_id_to_new_genes;
my $count_propagated = 0;
my $total = 0;
foreach my $asmbl_id (sort keys %$contig_to_gene_list_href) {
## $asmbl_id is the actual Transcript identifier from which ORFs were predicted.
my @gene_ids = @{$contig_to_gene_list_href->{$asmbl_id}};
foreach my $gene_id (@gene_ids) { # gene identifiers as given by transdecoder on the transcript sequences
my $gene_obj_ref = $gene_obj_indexer_href->{$gene_id};
$total++;
my $transcript_struct = $cdna_acc_to_transcript_structure{$asmbl_id};
unless ($transcript_struct) {
print STDERR "-WARNING, $asmbl_id has no genome representation... skipping\n";
next;
}
#print "$gene_obj_ref\n";
eval {
my $new_orf_gene = &place_orf_in_cdna_alignment_context($transcript_struct, $gene_obj_ref, \%cdna_seq_lengths);
if ($new_orf_gene) {
my $orf_count = $orf_counter{$asmbl_id}++;
$new_orf_gene->{asmbl_id} = $transcript_struct->{contig};
#$new_orf_gene->{TU_feat_name} = "t.$asmbl_id.$orf_count";
#$new_orf_gene->{Model_feat_name} = "m.$asmbl_id.$orf_count";
$new_orf_gene->{com_name} = "ORF";
my $use_gene_id = $transcript_struct->{gene_id};
unless ($use_gene_id) {
## extract the orig gene id from the incoming gene obj
my ($isolated_gene_id, @rest) = split(/::/, $gene_id);
$use_gene_id = $isolated_gene_id;
}
$new_orf_gene->{TU_feat_name} = $use_gene_id;
$new_orf_gene->{Model_feat_name} = $gene_obj_ref->{Model_feat_name};
print STDERR "New orf: " . $new_orf_gene->toString() if $DEBUG;
push (@{$isolated_gene_id_to_new_genes{$use_gene_id}}, $new_orf_gene);
$count_propagated++;
}
};
if ($@) {
print STDERR "Error, $gene_id couldn't be fully propagated:\n";
print STDERR Dumper($transcript_struct);
print STDERR $gene_obj_ref->toString();
print STDERR "$@";
}
}
}
## output results:
foreach my $gene_id (sort keys %isolated_gene_id_to_new_genes) {
my @gene_objs = @{$isolated_gene_id_to_new_genes{$gene_id}};
foreach my $gene_obj (@gene_objs) {
$gene_obj->set_CDS_phases_from_init_phase(0);
}
my $parent_gene_obj = shift @gene_objs;
foreach my $gene_obj (@gene_objs) {
$parent_gene_obj->add_isoform($gene_obj);
}
$parent_gene_obj->refine_gene_object();
print $parent_gene_obj->to_GFF3_format(source => "transdecoder") . "\n";
}
print STDERR "\n\n\tDone. $count_propagated / $total transcript orfs could be propagated to the genome\n\n";
exit(0);
}
####
sub parse_transcript_alignment_info {
my ($cdna_align_gff3) = @_;
my %cdna_alignments;
open (my $fh, $cdna_align_gff3) or die "Error, cannot open file $cdna_align_gff3";
while (<$fh>) {
if (/^\#/) { next; }
unless (/\w/) { next; }
my $line = $_;
my @x = split(/\t/);
my $contig = $x[0];
my $lend = $x[3];
my $rend = $x[4];
my $orient = $x[6];
my $info = $x[8];
$info =~ /Target=(\S+)/ or die "Error, cannot parse ID from info [$info] of line $line";
my $asmbl = $1;
my $trans_id = "";
my $gene_id = "";
## trick for retaining gene and trans identifier information from cufflinks data
if ($asmbl =~ /^GENE\^(\S+),TRANS\^(\S+)/) {
$gene_id = $1;
$trans_id = $2;
$asmbl = $2;
}
if (my $struct = $cdna_alignments{$asmbl}) {
push (@{$struct->{coords}}, [$lend, $rend]);
}
else {
# first time
my $struct = { asmbl => $asmbl,
contig => $contig,
coords => [
[$lend, $rend]
],
orient => $orient,
trans_id => $trans_id,
gene_id => $gene_id,
};
$cdna_alignments{$asmbl} = $struct;
}
}
close $fh;
return(%cdna_alignments);
}
####
sub place_orf_in_cdna_alignment_context {
my ($transcript_struct, $orf_gene_obj, $cdna_seq_lengths_href) = @_;
#print $orf_gene_obj->toString();
my $trans_seq_length = $cdna_seq_lengths_href->{ $transcript_struct->{asmbl} } or confess "Error, no length for " . Dumper($transcript_struct) . " Please be sure to use a cDNA fasta file and not a genome fasta file for your commandline parameter.";
## unwrap the gene
my @cds_coords;
my $orf_orient = $orf_gene_obj->get_orientation();
foreach my $exon ($orf_gene_obj->get_exons()) {
if (my $cds_exon = $exon->get_CDS_obj()) {
my ($lend, $rend) = sort {$a<=>$b} $cds_exon->get_coords();
push (@cds_coords, [$lend, $rend]);
}
}
#print Dumper(\@cds_coords);
@cds_coords = sort {$a->[0]<=>$b->[0]} @cds_coords;
my $cds_span_lend = $cds_coords[0]->[0];
my $cds_span_rend = $cds_coords[$#cds_coords]->[1];
unless ($cds_span_lend && $cds_span_rend) {
die "Error, missing cds span for gene: " . $orf_gene_obj->toString();
}
if ($cds_span_rend > $trans_seq_length) {
$cds_span_rend = $trans_seq_length;
}
my @exon_coords = @{$transcript_struct->{coords}};
@exon_coords = sort {$a->[0]<=>$b->[0]} @exon_coords;
my $trans_orient = $transcript_struct->{orient};
## examine each potential context of orf in alignment.
my ($cds_genome_lend, $cds_genome_rend);
my $transcribed_orient;
if ($orf_orient eq '+') {
if ($trans_orient eq '+') {
$cds_genome_lend = &from_cdna_lend($cds_span_lend, \@exon_coords);
$cds_genome_rend = &from_cdna_lend($cds_span_rend, \@exon_coords);
$transcribed_orient = '+';
}
elsif ($trans_orient eq '-') {
$cds_genome_lend = &from_cdna_rend($cds_span_rend, \@exon_coords);
$cds_genome_rend = &from_cdna_rend($cds_span_lend, \@exon_coords);
$transcribed_orient = '-';
}
}
else {
## orf orient is '-'
if (scalar(@exon_coords) > 1) {
# any correct ORF should be in the '+' orientation here.... must be a false positive orf or transcript structure is wrong
$WARNING_COUNT++;
print STDERR "Warning [$WARNING_COUNT], shouldn't have a minus-strand ORF on a spliced transcript structure. Skipping entry $orf_gene_obj->{Model_feat_name}.\n";
return undef;
}
if ($trans_orient eq '+') {
$cds_genome_lend = &from_cdna_lend($cds_span_rend, \@exon_coords);
$cds_genome_rend = &from_cdna_lend($cds_span_lend, \@exon_coords);
$transcribed_orient = '-';
}
elsif ($trans_orient eq '-') {
$cds_genome_lend = &from_cdna_rend($cds_span_rend, \@exon_coords);
$cds_genome_rend = &from_cdna_rend($cds_span_lend, \@exon_coords);
$transcribed_orient = '+';
}
}
my $new_gene_obj = new Gene_obj();
$new_gene_obj->build_gene_obj_exons_n_cds_range(\@exon_coords, $cds_genome_lend, $cds_genome_rend, $transcribed_orient);
return ($new_gene_obj);
}
####
sub from_cdna_lend {
my ($pt, $coords_aref) = @_;
my $lend_accrue = 0;
my @coords = sort {$a->[0]<=>$b->[0]} @$coords_aref;
foreach my $coordset (@coords) {
my ($lend, $rend) = @$coordset;
my $seg_len = $rend - $lend + 1;
my $rend_accrue = $lend_accrue + $seg_len;
$lend_accrue++;
if ($pt >= $lend_accrue && $pt <= $rend_accrue) {
my $pos = $lend + ($pt - $lend_accrue);
return($pos);
}
$lend_accrue = $rend_accrue;
}
die "Error, couldn't localize pt [$pt] within coordsets: " . Dumper($coords_aref);
return;
}
####
sub from_cdna_rend {
my ($pt, $coords_aref) = @_;
my $lend_accrue = 0;
my @coords = reverse sort {$a->[0]<=>$b->[0]} @$coords_aref;
foreach my $coordset (@coords) {
my ($lend, $rend) = @$coordset;
my $seg_len = $rend - $lend + 1;
my $rend_accrue = $lend_accrue + $seg_len;
$lend_accrue++;
if ($pt >= $lend_accrue && $pt <= $rend_accrue) {
my $pos = $rend - ($pt - $lend_accrue);
return($pos);
}
$lend_accrue = $rend_accrue;
}
die "Error, couldn't localize pt $pt within coordsets: " . Dumper($coords_aref);
return;
}
####
sub parse_cdna_seq_lengths {
my ($fasta_file) = @_;
my %seq_lengths;
my $fasta_reader = new Fasta_reader($fasta_file);
while (my $seq_obj = $fasta_reader->next()) {
my $acc = $seq_obj->get_accession();
my $asmbl = $acc;
if ($acc =~ /(asmbl_\d+)/) {
# pasa stuff
$asmbl = $1;
}
my $sequence = $seq_obj->get_sequence();
$seq_lengths{$asmbl} = length($sequence);
}
return(%seq_lengths);
}
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