Crystal structure of ustekinumab FAB


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth L]PBPe3hmwL1 A: beta barrelsX: Lipocalins/StreptavidinH: Immunoglobulin-relatedT: PEBP-likeF: PBPECOD (v294.2)
B [auth H]Glyco_hydro_25e3hmwH1 A: beta barrelsX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Cu,Zn superoxide dismutase-likeF: Glyco_hydro_25ECOD (v294.2)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
B [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
A [auth L]ustekinumab Fab L-KAPPA Homo sapiens (human) IGKV1D-16*01, IGKJ2*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202617-0)
B [auth H]ustekinumab Fab VH-CH1 Homo sapiens (human) IGHV5-51*01, IGHV5-51*03, IGHJ4*01, IGHJ4*02, IGHJ4*03, IGHG1*01, IGHG1*02, IGHG1*03 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202617-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A [auth L]Light ChainIGKV1D Kappa-SAbDab (2026-05-08)
B [auth H]Heavy ChainIGHV5 --SAbDab (2026-05-08)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

ChainNameTargetProvenance Source
A [auth L] Ustekinumab IL12B/CLMFp40Therapeutic SAbDab (2026-05-08)
B [auth H] Ustekinumab IL12B/CLMFp40Therapeutic SAbDab (2026-05-08)