I'm not at all sure anything you'll find on CPAN will be helpful, but there are a number of packages which seem related to your issue using the search terms: site:CPAN.org  cds GenBank: My naive Google search results lists 153 possibilities.


Spirit of the Monastery

In reply to Re: Is it possible to retrieve the coding sequence of a gene from NCBI GenBank database using perl ? by ww
in thread Is it possible to retrieve the coding sequence of a gene from NCBI GenBank database using perl ? by supriyoch_2008

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