Structure of anti-HIV trimer apex antibody PGT143


Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
D [auth L]Glyco_hydro_77e5uxqL1 A: a/b three-layered sandwichesX: HAD domain-likeH: beta-propellerT: 8-bladedF: Glyco_hydro_77ECOD (v294.1)
BGlyco_hydro_77e5uxqB1 A: a/b three-layered sandwichesX: HAD domain-likeH: beta-propellerT: 8-bladedF: Glyco_hydro_77ECOD (v294.1)
C [auth H]Glyco_hydro_77e5uxqH1 A: a/b three-layered sandwichesX: HAD domain-likeH: beta-propellerT: 8-bladedF: Glyco_hydro_77ECOD (v294.1)
AGlyco_hydro_77e5uxqA1 A: a/b three-layered sandwichesX: HAD domain-likeH: beta-propellerT: 8-bladedF: Glyco_hydro_77ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
D [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
B2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
C [auth H]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
A2.60.40.10 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,
D [auth L]
Fab PGT143 L-KAPPA Homo sapiens (human) IGKV2-28*01, IGKV2D-28*01, IGKJ2*02, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202615-0)
A,
C [auth H]
Fab PGT143 VH-CH1 Homo sapiens (human) IGHV1-2*02, IGHV1-8*01, IGHV1-8*02, IGHV1-8*03, IGHJ3*01, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05, IGHG1*12, IGHG1*14, IGHG1*13, IGHG1*09, IGHG1*10, IGHG1*07, IGHG1*11 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202615-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B,
D [auth L]
Light ChainIGKV2 Kappa-SAbDab (2026-04-24)
A,
C [auth H]
Heavy ChainIGHV1 --SAbDab (2026-04-24)