Fold (b.1): Immunoglobulin-like beta-sandwich [48725]

Superfamily (b.1.1): Immunoglobulin [48726]

Family (b.1.1.1): V set domains (antibody variable domain-like) [48727]

Family (b.1.1.2): C1 set domains (antibody constant domain-like) [48942]

Family (b.1.1.3): C2 set domains [49142]

Family (b.1.1.4): I set domains [49159]