Hi folks, I've started a project for representing biological sequences called cl-bio. Perhaps one day this package will have a reasonable subset of the functionality in the BioPerl project (not the lispy naming analogy, I like to think cl-bio is a more appropriate name than the (taken) BioLisp name), but for the moment it allows for flexible and efficient representation of biological sequences such as DNA , RNA and protein sequences and for working with ranges on these sequences and identifiers to name the sequences. I think this would make a good project for common-lisp.net. Thanks, Cyrus