3RPI | pdb_00003rpi

Crystal Structure of Fab from 3BNC60, Highly Potent anti-HIV Antibody

External Resource: Annotation


Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
B [auth H]d3rpih_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
C [auth A]d3rpia_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
A [auth L]d3rpil2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
A [auth L]d3rpil1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
D [auth B]d3rpib2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
D [auth B]d3rpib1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
B [auth H]Rase3rpiH1 A: a/b three-layered sandwichesX: EF-handH: Insect pheromone/odorant-binding proteinsT: Insect pheromone/odorant-binding proteinsF: RasECOD (v294.1)
C [auth A]zf-rbx1e3rpiA1 A: a/b three-layered sandwichesX: Lipocalins/StreptavidinH: Zn-dependent exopeptidasesT: Zn-dependent exopeptidasesF: zf-rbx1ECOD (v294.1)
A [auth L]G-gammae3rpiL1 A: a/b three-layered sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: G-gammaECOD (v294.1)
D [auth B]zf-rbx1e3rpiB1 A: a/b three-layered sandwichesX: Lipocalins/StreptavidinH: Zn-dependent exopeptidasesT: Zn-dependent exopeptidasesF: zf-rbx1ECOD (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)
C [auth A]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)
D [auth B]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],
C [auth A]		3BNC60 Fab, anti-HIV neutralizing antibody VH-CH1 Homo sapiens (human) IGHV1-2*02, IGHJ2*01, IGHG1*03 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202613-0)
A [auth L],
D [auth B]		3BNC60 Fab, anti-HIV neutralizing antibody L-KAPPA Homo sapiens (human) IGKV1-33*01, IGKV1D-33*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202613-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B [auth H],
C [auth A]		Heavy ChainIGHV1 --SAbDab (2026-04-10)
A [auth L],
D [auth B]		Light ChainIGKV1 Kappa-SAbDab (2026-04-10)