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Crystal structure of the arthritogenic antibody M2139 (Fab fragment) in complex with the triple-helical J1 peptide External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) B Acylphosphatase e4bklB1 A: alpha arrays X: FAD-linked reductases, C-terminal domain-like H: FAD-linked reductases-C T: FAD-linked reductases-C F: Acylphosphatase ECOD (v295.2) A Acylphosphatase e4bklA1 A: alpha arrays X: FAD-linked reductases, C-terminal domain-like H: FAD-linked reductases-C T: FAD-linked reductases-C F: Acylphosphatase ECOD (v295.2)
Chain Protein Name Description Organism Name Gene Allele Name(s) Domain Name(s) Receptor Type Receptor Description Provenance Source M2139 Fab L-KAPPA Mus musculus (house mouse) IGKV3-1*01, IGKJ2*01, IGKC*01, IGKC*02 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-2B_KAPPA IMGT (202640-0) M2139 Fab VH-CH1 Mus musculus (house mouse) IGHV1-7*01, IGHV1-4*01, IGHJ2*01, IGHG2B*02 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-2B_KAPPA IMGT (202640-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source Light Chain IGKV3 Kappa j1 epitope | j1 epitope | j1 epitope SAbDab (2026-10-16) Heavy Chain IGHV1 - j1 epitope | j1 epitope | j1 epitope SAbDab (2026-10-16)
Protein Modification Annotation