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Crystal Structure of 5C4 Fab External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) B [auth H] RuBisCO_large_N e5w24H1 A: alpha arrays X: Cryptochrome/photolyase FAD-binding domain-related H: Cryptochrome/photolyase FAD-binding domain-related T: Undecaprenyl diphosphate synthase F: RuBisCO_large_N ECOD (v295.2) A [auth L] ATP-synt_Eps e5w24L1 A: alpha arrays X: FAD-linked reductases, C-terminal domain-like H: FAD-linked reductases-C T: FAD-linked reductases-C F: ATP-synt_Eps 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] mAb 5C4 , broadly neutralizing VH-CH1 Homo sapiens (human) IGHV1-69-2*01, IGHJ4*01, IGHJ4*02, IGHJ4*03, IGHG2*02 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-2_KAPPA IMGT (202640-0) A [auth L] mAb 5C4 , broadly neutralizing L-KAPPA Homo sapiens (human) IGKV4-1*01, IGKJ2*02, IGKC*01, IGKC*04 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-2_KAPPA IMGT (202640-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source B [auth H] Heavy Chain IGHV14 - - SAbDab (2026-10-16) A [auth L] Light Chain IGKV3 Kappa - SAbDab (2026-10-16)