It is intended to provide the research community with easy sequence deposit and retrieval capabilities, together with tools tailored, in particular, to the analysis of hemagglutinin and neuraminidase sequences. The search page provides Basic and Advanced searches as well as two specialized functions called Region and Prosite search. Region search is an Advanced search with the additional feature of allowing the user to prune returned sequences to a region of interest. Region search is based on prealigned sequences, and hence can be used to download alignments. Another tool translates accession numbers on a user-supplied phylogenetic tree into full or abbreviated strain names.
More tools are in the development stage.
Users of the database are encouraged to contact us with suggestions for new tools that would be of general interest.