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)
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)
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)
C [auth A]d3rpia_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
B [auth H]d3rpih_ 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)
D [auth B]e3rpiB1 A: Alpha-beta plaitsX: Phage tail protein-likeH: Transmembrane protein 14AT: zf-rbx1F:ECOD (20:10:01)
A [auth L]e3rpiL1 A: Immunoglobulin-like beta-sandwichX: Immunoglobulin-relatedH: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeT: G-gammaF:ECOD (20:10:01)
C [auth A]e3rpiA1 A: Alpha-beta plaitsX: Phage tail protein-likeH: Transmembrane protein 14AT: zf-rbx1F:ECOD (20:10:01)
B [auth H]e3rpiH1 A: EF-handX: Insect pheromone/odorant-binding proteinsH: Insect pheromone/odorant-binding proteinsT: RasF:ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
D [auth B]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)
C [auth A]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],
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 (202609-0)
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 (202609-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
A [auth L],
D [auth B]		Light ChainIGKV1 Kappa-SAbDab (2026-03-13)
B [auth H],
C [auth A]		Heavy ChainIGHV1 --SAbDab (2026-03-13)