URL +1, LSID -1

In the latest release of UniProt (11.3), all URIs of the form:

   urn:lsid:uniprot.org:{db}:{id}

have been replaced with URLs:

   http://purl.uniprot.org/{db}/{id}

In general, these URLs can be resolved to a human readable web page (a few 
are still broken, will be fixed). Some of these web pages may (or may not) 
be linked to a machine-readable representation via link-rel=alternate.

As an optimization for "Semantic Web" crawlers, there is experimental 
support for "Accept" headers (i.e. set it to "application/rdf+xml").

Some examples:

http://purl.uniprot.org/uniprot/P12345
http://purl.uniprot.org/taxonomy/9606
http://purl.uniprot.org/pdb/1BRC