National Center for Biotechnology Information (NCBI), National Library of Medicine (NLM), National Institutes of Health (NIH), Bethesda, Maryland, United States of America.|Swiss-Prot Group, SIB Swiss Institute of Bioinformatics, Geneva, Switzerland.|European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.|National Center for Biotechnology Information (NCBI), National Library of Medicine (NLM), National Institutes of Health (NIH), Bethesda, Maryland, United States of America.|European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.|Swiss-Prot Group, SIB Swiss Institute of Bioinformatics, Geneva, Switzerland.|Swiss-Prot Group, SIB Swiss Institute of Bioinformatics, Geneva, Switzerland.|Swiss-Prot Group, SIB Swiss Institute of Bioinformatics, Geneva, Switzerland.|European Molecular Biology Laboratory, European Bioinformatics Institute, Wellcome Genome Campus, Hinxton, Cambridge, United Kingdom.|Center for Integrative Genomics, University of Lausanne, Lausanne Switzerland.|National Center for Biotechnology Information (NCBI), National Library of Medicine (NLM), National Institutes of Health (NIH), Bethesda, Maryland, United States of America.