|  | Class b: All beta proteins [48724] (180 folds) | 
|  | Fold b.58: PK beta-barrel domain-like [50799] (1 superfamily) barrel, closed; n=7, S=10; complex topology | 
|  | Superfamily b.58.1: PK beta-barrel domain-like [50800] (2 families)  | 
|  | Family b.58.1.1: Pyruvate kinase beta-barrel domain [50801] (1 protein) this domain interrupts beta/alpha-barrel domain C-terminal domain is alpha/beta | 
|  | Pyruvate kinase (PK) [50802] (6 species) | 
|  | Species Baker's yeast (Saccharomyces cerevisiae) [TaxId:4932] [50806] (2 PDB entries) | 
|  | Species Cat (Felis catus) [TaxId:9685] [50804] (1 PDB entry) | 
|  | Species Escherichia coli [TaxId:562] [50807] (3 PDB entries) | 
|  | Species Human (Homo sapiens) [TaxId:9606] [82151] (8 PDB entries) | 
|  | Species Rabbit (Oryctolagus cuniculus) [TaxId:9986] [50803] (7 PDB entries) | 
|  | Species Trypanosome (Leishmania mexicana) [TaxId:5665] [50805] (11 PDB entries) | 
Timeline for Family b.58.1.1: Pyruvate kinase beta-barrel domain: