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Crystal structure of VH1-46 germline-derived CD4-binding site-directed antibody 8ANC131 in complex with HIV-1 clade B YU2 gp120 External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) A AWS e4rwyA1 A: alpha arrays X: Immunoglobulin-like beta-sandwich H: Immunoglobulin-related T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like F: AWS ECOD (v295.2) C [auth L] MCRA e4rwyL1 A: alpha arrays X: Ribosomal protein S7 H: Ribosomal protein S7 T: Ribosomal protein S7 F: MCRA ECOD (v295.2) B [auth H] MCRA e4rwyH2 A: alpha arrays X: Ribosomal protein S7 H: Ribosomal protein S7 T: Ribosomal protein S7 F: MCRA ECOD (v295.2) B [auth H] EF-hand_1, EF-hand_6, EF-hand_7 e4rwyH1 A: alpha arrays X: Lipocalins/Streptavidin H: SAM/DNA-glycosylase T: SAM domain-like F: EF-hand_1, EF-hand_6, EF-hand_7 ECOD (v295.2)
Chain Protein Name Description Organism Name Gene Allele Name(s) Domain Name(s) Receptor Type Receptor Description Provenance Source C [auth L] 8ANC131 mAb, anti-gp41 [HIV-1], neutralizing L-KAPPA Homo sapiens (human) IGKV3D-11*01, IGKV3D-11*03, IGKJ3*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202640-0) B [auth H] 8ANC131 mAb, anti-gp41 [HIV-1], neutralizing VH-CH1 Homo sapiens (human) IGHV1-46*02, IGHJ6*01, IGHJ6*02, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202640-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source C [auth L] Light Chain IGKV3 Kappa hiv-1 yu2 gp120 SAbDab (2026-10-16)