HIV Databases HIV Databases home HIV Databases home
HIV sequence database

Software created by the Los Alamos databases

SNAP, Synonymous/Non-synonymous Analysis Program
VESPA, signature pattern analysis

The links download zip files, which should open on Mac, PC and Unix/Linux machines. SNAP is a Perl program, so to run it you need to have Perl installed on your system. It is usually installed on Linux/Unix, but for PC or Mac use you may have to download it. Perl is available for free at Vespa is a compiled C program, the zipfile contains separate versions for Mac, PC and Linux/Unix. If you run the correct version and still have trouble, let us know!

last modified: Wed Nov 14 13:29 2007

Questions or comments? Contact us at

Operated by Los Alamos National Security, LLC, for the U.S. Department of Energy's National Nuclear Security Administration
Copyright © 2005-2017 LANS, LLC All rights reserved | Disclaimer/Privacy

Dept of Health & Human Services Los Alamos National Institutes of Health