SWISS-PROT protein sequence database
Release 2013_05, May 13
Swiss Institute of Bioinformatics; European Bioinformatics Institute
540,052 entries, 191,770,152 residues

TrEMBL protein sequence database
Release 2013_05, May 13
European Bioinformatics Institute; Swiss Institute of Bioinformatics
33,995,348 entries, 10,924,561,758 residues