SWISS-PROT protein sequence database
Release 2023_02, May 23
Swiss Institute of Bioinformatics; European Bioinformatics Institute
569,516 entries, 205,866,895 residues

TrEMBL protein sequence database
Release 2023_02, May 23
European Bioinformatics Institute; Swiss Institute of Bioinformatics
249,308,459 entries, 86,853,323,495 residues

Re-organized Protein Data Bank
Release 23-05-27, May 23
Kyoto University Bioinformatics Center
591,092 entries, 168,792,356 residues