4WUK | pdb_00004wuk

Crystal structure of apo CH65 Fab


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
B [auth L]C1-sete4wukL1 A: a/b three-layered sandwichesX: Ribonuclease H-likeH: Rossmann-relatedT: S-adenosyl-L-methionine-dependent methyltransferasesF: C1-setECOD (v294.1)
A [auth H]C1-sete4wukH1 A: a/b three-layered sandwichesX: Ribonuclease H-likeH: Rossmann-relatedT: S-adenosyl-L-methionine-dependent methyltransferasesF: C1-setECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
B [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
A [auth H]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

ChainProtein NameDescriptionOrganism NameGene Allele Name(s)Domain Name(s)Receptor TypeReceptor DescriptionProvenance Source
B [auth L]CH65 Fab L-LAMBDA Homo sapiens (human) IGLV3-21*02, IGLJ2*01, IGLJ3*01, IGLC2*01, IGLC2*02, IGLC3*04 V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA IG FAB-GAMMA-1_LAMBDA IMGT (202611-0)
A [auth H]CH65 Fab VH-CH1 Homo sapiens (human) IGHV1-2*04, IGHJ6*01, IGHJ6*02, IGHG1*03 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_LAMBDA IMGT (202611-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B [auth L]Light ChainIGLV3 Lambda-SAbDab (2026-03-27)
A [auth H]Heavy ChainIGHV1 --SAbDab (2026-03-27)