We moved the HIV sequence database from Sybase to PostgreSQL. In the process we updated the Sequence Search Interface, the Advanced Search, the Geography Search Interface, and some minor tools associated with the database. 13 January 2009
Our page describing the Circulating Recombinant Forms (CRFs) has new images showing the subtypes in each recombinant more clearly. We have added an additional web page that lists the breakpoints for each CRF. 04 November 2008
We have a new tool called Pixel that visualizes large alignments as an image, using 1 pixel per residue. It can be very helpful when the alignments get large enough that you lose the overview, and quickly shows problems and misalignments. It works for both nucleotide and amino acid alignments. 25 October 2008