Raw content of Bio::Tools::Prints
<![CDATA[# $Id: Prints.pm,v 1.7 2002/10/22 07:45:22 lapp Exp $
#
# BioPerl module for Bio::Tools::Prints
#
# Cared for by Balamurugan Kumarasamy
#
# You may distribute this module under the same terms as perl itself
# POD documentation - main docs before the code
#
=head1 NAME
Bio::Tools::Prints - Parser for FingerPRINTScanII program
=head1 SYNOPSIS
use Bio::Tools::Prints;
my $prints_parser = new Bio::Tools::Prints(-fh =>$filehandle );
while( my $prints_feat = $prints_parser->next_result ) {
push @prints_feat, $prints_feat;
}
=head1 DESCRIPTION
PRINTScan II is a PRINTS fingerprint identification algorithm.
Copyright (C) 1998,1999 Phil Scordis
=head1 FEEDBACK
=head2 Mailing Lists
User feedback is an integral part of the evolution of this and other
Bioperl modules. Send your comments and suggestions preferably to
the Bioperl mailing list. Your participation is much appreciated.
bioperl-l@bioperl.org - General discussion
http://bioperl.org/MailList.shtml - About the mailing lists
=head2 Reporting Bugs
Report bugs to the Bioperl bug tracking system to help us keep track
of the bugs and their resolution. Bug reports can be submitted via
email or the web:
bioperl-bugs@bioperl.org
http://bugzilla.bioperl.org/
=head1 AUTHOR - Balamurugan Kumarasamy
Email: fugui@worf.fugu-sg.org
=head1 APPENDIX
The rest of the documentation details each of the object methods.
Internal methods are usually preceded with a _
=cut
package Bio::Tools::Prints;
use vars qw(@ISA);
use strict;
use Bio::Root::Root;
use Bio::SeqFeature::FeaturePair;
use Bio::Root::IO;
use Bio::SeqFeature::Generic;
@ISA = qw(Bio::Root::Root Bio::Root::IO );
=head2 new
Title : new
Usage : my $obj = new Bio::Tools::Prints(-fh=>$filehandle);
Function: Builds a new Bio::Tools::Prints object
Returns : Bio::Tools::Prints
Args : -filename
-fh (filehandle)
=cut
sub new {
my($class,@args) = @_;
my $self = $class->SUPER::new(@args);
$self->_initialize_io(@args);
return $self;
}
=head2 next_result
Title : next_result
Usage : my $feat = $prints_parser->next_result
Function: Get the next result set from parser data
Returns : L<Bio::SeqFeature::Generic>
Args : none
=cut
sub next_result {
my ($self) = @_;
my %printsac;
my @features;
my $line;
my $sequenceId;
while ($_=$self->_readline()) {
$line = $_;
chomp $line;
if ($line =~ s/^Sn;//) { # We have identified a Sn; line so there should be the following:
($sequenceId) = $line =~ /^\s*(\w+)/;
$self->seqname($sequenceId);
next;
}
if ($line =~ s/^1TBH//) {
my ($id) = $line =~ /^\s*(\w+)/;
my ($ac) = $line =~ /(PR\w+)\s*$/;
$printsac{$id} = $ac;
$self->print_sac(\%printsac);
next;
}
if ($line =~ s/^3TB//) {
if ($line =~ s/^[HN]//) {
my($num)="";
$line =~ s/^\s+//;
my @elements = split /\s+/, $line;
my ($fingerprintName,$motifNumber,$temp,$tot,$percentageIdentity,$profileScore,$pvalue,$subsequence,$motifLength,$lowestMotifPosition,$matchPosition,$highestMotifPosition) = @elements;
my $start = $matchPosition;
my $end = $matchPosition + $motifLength - 1;
my $print_sac = $self->print_sac;
my %printsac = %{$print_sac};
my $print = $printsac{$fingerprintName};
my $seqname=$self->seqname;
my $feat = "$print,$start,$end,$percentageIdentity,$profileScore,$pvalue";
my $new_feat = $self->create_feature($feat,$seqname);
return $new_feat;
}
if ($line =~ s/^F//) {
return;
}
next; }
next;
}
}
=head2 create_feature
Title : create_feature
Usage : my $feat=$prints_parser->create_feature($feature,$seqname)
Function: creates a SeqFeature Generic object
Returns : L<Bio::SeqFeature::Generic>
Args :
=cut
sub create_feature {
my ($self, $feat,$sequenceId) = @_;
my @f = split (/,/,$feat);
# create feature object
my $feature= Bio::SeqFeature::Generic->new(-seq_id =>$sequenceId,
-start=>$f[1],
-end => $f[2],
-score => $f[4],
-source => "PRINTS",
-primary =>$f[0],
-logic_name => "PRINTS",
);
$feature->add_tag_value('evalue',$f[5]);
$feature->add_tag_value('percent_id',$f[3]);
return $feature;
}
=head2 print_sac
Title : print_sac
Usage : $prints_parser->print_sac($print_sac)
Function: get/set for print_sac
Returns :
Args :
=cut
sub print_sac{
my($self,$printsac)=@_;
if(defined($printsac))
{
$self->{'print_sac'}=$printsac;
}
return $self->{'print_sac'};
}
=head2 seqname
Title : seqname
Usage : $prints_parser->seqname($seqname)
Function: get/set for seqname
Returns :
Args :
=cut
sub seqname{
my($self,$seqname)=@_;
if(defined($seqname))
{
$self->{'seqname'}=$seqname;
}
return $self->{'seqname'};
}
1;
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