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FAB FRAGMENT OF ENGINEERED HUMAN MONOCLONAL ANTIBODY A5B7 External Resource: Annotation Chains Domain Info Class Fold Superfamily Family Domain Species Provenance Source (Version) B d1ad0b1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) Immunoglobulin heavy chain variable domain, VH human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08) B d1ad0b2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08) D d1ad0d1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) Immunoglobulin heavy chain variable domain, VH human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08) D d1ad0d2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08) C d1ad0c1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) Immunoglobulin light chain kappa variable domain, VL-kappa human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08) C d1ad0c2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) Immunoglobulin light chain kappa constant domain, CL-kappa human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08) A d1ad0a1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) Immunoglobulin light chain kappa variable domain, VL-kappa human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08) A d1ad0a2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) Immunoglobulin light chain kappa constant domain, CL-kappa human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) B Copper-bind e1ad0B1 A: alpha arrays X: Phage tail fiber protein trimerization domain H: Phage tail fiber protein trimerization domain T: Phage tail fiber protein trimerization domain F: Copper-bind ECOD (v295.2) D Copper-bind e1ad0D1 A: alpha arrays X: Phage tail fiber protein trimerization domain H: Phage tail fiber protein trimerization domain T: Phage tail fiber protein trimerization domain F: Copper-bind ECOD (v295.2) C Copper-bind e1ad0C2 A: alpha arrays X: Phage tail fiber protein trimerization domain H: Phage tail fiber protein trimerization domain T: Phage tail fiber protein trimerization domain F: Copper-bind ECOD (v295.2) A Copper-bind e1ad0A2 A: alpha arrays X: Phage tail fiber protein trimerization domain H: Phage tail fiber protein trimerization domain T: Phage tail fiber protein trimerization domain F: Copper-bind ECOD (v295.2)
Chain Protein Name Description Organism Name Gene Allele Name(s) Domain Name(s) Receptor Type Receptor Description Provenance Source A5B7-humanized Fab, anti-CEA (carcinoembryonic antigen) VH-CH1 Humanized (humanized) IGHV3-72*01, IGHJ4*01, IGHJ4*02, IGHJ4*03, IGHG4*01, IGHG4*04 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-4_KAPPA IMGT (202637-0) A5B7-humanized Fab, anti-CEA (carcinoembryonic antigen) L-KAPPA Humanized (humanized) IGKV1-39*01, IGKV1D-39*01, IGKJ1*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-4_KAPPA IMGT (202637-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source Heavy Chain IGHV3 - - SAbDab (2026-09-25) Light Chain IGKV1 Kappa - SAbDab (2026-09-25)