BioPerl is the product of a community effort to produce Perl code which is
useful in biology. Examples include Sequence objects, Alignment objects and
database searching objects. These objects not only do what they are
advertised to do in the documentation, but they also interact - Alignment
objects are made from the Sequence objects, Sequence objects have access to
Annotation and SeqFeature objects and databases, Blast objects can be
converted to Alignment objects, and so on. This means that the objects
provide a coordinated and extensible framework to do computational biology.