Hi Monks, I am having some trouble using recursion in order to find all possible DNA sequences from a sequence (AATGGTTTCTCCCATCTCTCCATCGGCATAAAAATACAGAATGATCTAA). Each time I try to run my code I get stuck in deep recursion. Here is what I have...can anyone tell me where I am going wrong? 
#!/usr/bin/perl
use strict;
use warnings;

my $inputseq = "AATGGTTTCTCCCATCTCTCCATCGGCATAAAAATACAGAATGATCTAA";


my $regex = '\w+(ATG\w*T(AG|AA|GA))\w+';

find_coding($inputseq);

sub find_coding {
        my ( $seq ) = @_;
        while ( $seq =~ /($regex)/g ) {
                my $match = $1;
                my $sequence = find_coding($match);
                my $allmatch = find_coding($sequence);
                print "Coding region: $allmatch", "\n";
        }
}

[download]
Thanks in advance!

In reply to Using Recursion to Find DNA Sequences by clueless_perl

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