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Crystal structure of Nivolumab Fab fragment External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) B [auth H] PK_Tyr_Ser-Thr e5ggqH1 A: alpha arrays X: Type II ABC importer transmembrane domain fold H: Type II ABC importer transmembrane domain fold T: Type II ABC importer transmembrane domain fold F: PK_Tyr_Ser-Thr ECOD (v295.2) A [auth L] PK_Tyr_Ser-Thr e5ggqL1 A: alpha arrays X: Type II ABC importer transmembrane domain fold H: Type II ABC importer transmembrane domain fold T: Type II ABC importer transmembrane domain fold F: PK_Tyr_Ser-Thr ECOD (v295.2)
Chain Protein Name Description Organism Name Gene Allele Name(s) Domain Name(s) Receptor Type Receptor Description Provenance Source B [auth H] Fab Nivolumab VH-CH1 Homo sapiens (human) IGHV3-33*01, IGHV3-33*03, IGHV3-33*04, IGHV3-33*06, IGHJ4*01, IGHJ4*02, IGHJ4*03, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05, IGHG1*12, IGHG1*14, IGHG1*13, IGHG1*09, IGHG1*10, IGHG1*07, IGHG1*11 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202637-0) A [auth L] Fab Nivolumab L-KAPPA Homo sapiens (human) IGKV3-11*01, IGKJ1*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202637-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source B [auth H] Heavy Chain IGHV3 - - SAbDab (2026-09-25) A [auth L] Light Chain IGKV3 Kappa - SAbDab (2026-09-25)