3M8O | pdb_00003m8o

Human IgA1 Fab fragment


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
B [auth H]Isochorismatasee3m8oH1 A: a/b three-layered sandwichesX: N-terminal beta-sandwich domain in anthrax protective antigenH: N-terminal beta-sandwich domain in anthrax protective antigenT: N-terminal beta-sandwich domain in anthrax protective antigenF: IsochorismataseECOD (v294.1)
A [auth L]Pkinase,Pkinase_Ce3m8oL1 A: a/b three-layered sandwichesX: Lipocalins/StreptavidinH: Zn-dependent exopeptidasesT: Zn-dependent exopeptidasesF: Pkinase,Pkinase_CECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
B [auth H]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
A [auth L]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 H]IgA1 Fab fragment VH-CH1 Homo sapiens (human) IGHV3-73*01, IGHV3-73*02, IGHJ1*01, IGHA1*01 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-ALPHA-1_KAPPA IMGT (202614-0)
A [auth L]IgA1 Fab fragment L-KAPPA Homo sapiens (human) IGKV2-28*01, IGKV2D-28*01, IGKJ5*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-ALPHA-1_KAPPA IMGT (202614-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B [auth H]Heavy ChainIGHV3 --SAbDab (2026-04-17)
A [auth L]Light ChainIGKV2 Kappa-SAbDab (2026-04-17)