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Crystal structure of therapeutic mAB AR20.5 in complex with MUC1 peptide External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) D Ras e5t6pD1 A: alpha arrays X: Small envelope protein M H: Small envelope protein M T: Small envelope protein M F: Ras ECOD (v295.2) B Ras e5t6pB1 A: alpha arrays X: Small envelope protein M H: Small envelope protein M T: Small envelope protein M F: Ras ECOD (v295.2) C Ras e5t6pC1 A: alpha arrays X: Small envelope protein M H: Small envelope protein M T: Small envelope protein M F: Ras ECOD (v295.2) A Ras e5t6pA1 A: alpha arrays X: Small envelope protein M H: Small envelope protein M T: Small envelope protein M F: Ras ECOD (v295.2)
Chain Protein Name Description Organism Name Gene Allele Name(s) Domain Name(s) Receptor Type Receptor Description Provenance Source mAb AR20.5 VH-CH1 Mus musculus (house mouse) IGHV5-12-2*01, IGHJ2*01, IGHG1*02 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202640-0) mAb AR20.5 L-KAPPA Mus musculus (house mouse) IGKV1-117*01, IGKJ1*01, IGKC*01, IGKC*02 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202640-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source Heavy Chain IGHV5 - muc1 peptide fragment SAbDab (2026-10-16) Light Chain IGKV1 Kappa muc1 peptide fragment SAbDab (2026-10-16)