This is Bio::Das, a set of Perl modules for accessing genomic annotations distributed using the Distributed Annotation System (http://biodas.org). To build, you need XML::Parser and LWP version 5 or higher. Then it's just a matter of: perl Makefile.PL make make test make install The tests attempt to contact the WormBase DAS server at http://www.wormbase.org/db/das. If this data source is down for some reason, the tests may hang. Don't give up; just try again later. Full information on using this module is available in the POD documentation. Start with perldoc Bio::Das. Then read Bio::Das::Segment, Bio::Das::Segment::Feature, and Bio::Das::Type. Graphics support for Bio::Das is available in the Bio::Graphics package, which you can download from CPAN. To use graphics you also must install the GD module. The file "testgraphics.pl" in the Bio::Das distribution directory can be used to draw pictures from the WormBase DAS server. Address questions to the DAS mailing list. To subscribe, visit this URL: http://biodas.org/mailman/listinfo/das Lincoln Stein lstein@cshl.org