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Crystal structure of the HIV-1 Cross Neutralizing Monoclonal Antibody 2F5 Fab' fragment in complex with gp41 Peptide analog ELD(Orn)WAS External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) B adh_short e3idjB1 A: alpha arrays X: Alpha-beta plaits H: Phage tail protein-like T: Transmembrane protein 14A F: adh_short ECOD (v295.2) A adh_short e3idjA1 A: alpha arrays X: Alpha-beta plaits H: Phage tail protein-like T: Transmembrane protein 14A F: adh_short ECOD (v295.2)
Chain Protein Name Description Organism Name Gene Allele Name(s) Domain Name(s) Receptor Type Receptor Description Provenance Source 2F5 mAb, anti-gp41 membrane-proximal external region (MPER) VH-CH1 Homo sapiens (human) IGHV2-5*05, IGHV2-5*06, IGHJ6*01, IGHJ6*02, IGHG1*01, IGHG1*02, IGHG1*03 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202636-0) 2F5 mAb, anti-gp41 membrane-proximal external region (MPER) L-KAPPA Homo sapiens (human) IGKV1-13*02, IGKJ4*01, IGKJ4*02, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202636-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source Heavy Chain IGHV2 - gp41 mper peptide analog SAbDab (2026-09-18) Light Chain IGKV1 Kappa gp41 mper peptide analog SAbDab (2026-09-18)