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The crystal structure of the cytoplasmic domain of KcsA External Resource: Annotation Chains Family Name Domain Identifier Architecture Possible Homology Homology Topology Family Provenance Source (Version) C [auth K] ColA_N e3efdK01 A: alpha arrays X: Colicin-A N-terminal domain H: Colicin-A N-terminal domain T: Colicin-A N-terminal domain F: ColA_N ECOD (v295.2) B [auth H] Phospholip_A2_1 e3efdH1 A: alpha arrays X: TAZ domain H: TAZ domain T: Lipocalins F: Phospholip_A2_1 ECOD (v295.2) A [auth L] Methyltransf_25 e3efdL1 A: alpha arrays X: HTH H: HTH T: tetra-helical, lambda repressor-like F: Methyltransf_25 ECOD (v295.2)
Chain Protein Name Description Organism Name Gene Allele Name(s) Domain Name(s) Receptor Type Receptor Description Provenance Source B [auth H] FAB-GAMMA-1_KAPPA VH-CH1 Homo sapiens (human) IGHV3-66*01, IGHV3-66*02, IGHV3-66*04, IGHV3-23*04, IGHJ6*01, IGHJ6*02, IGHG1*01, IGHG1*02, IGHG1*04 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202637-0) A [auth L] FAB-GAMMA-1_KAPPA L-KAPPA Homo sapiens (human) IGKV1-39*01, IGKV1D-39*01, IGKJ1*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202637-0)
Chain Chain Class Chain Subclass Chain Type Antigen Name(s) Provenance Source B [auth H] Heavy Chain IGHV3 - kcsa SAbDab (2026-09-25) A [auth L] Light Chain IGKV1 Kappa kcsa SAbDab (2026-09-25)