3NTC | pdb_00003ntc

Crystal structure of KD-247 Fab, an anti-V3 antibody that inhibits HIV-1 Entry


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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
B [auth H]d3ntch_ All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches (Homo sapiens ) [TaxId: 9606 ], (Mus musculus ) [TaxId: 10090 ], SCOPe (2.08)
A [auth L]d3ntcl1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin automated matches automated matches (Homo sapiens ) [TaxId: 9606 ], (Mus musculus ) [TaxId: 10090 ], SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
B [auth H]e3ntcH1 A: Retrovirus capsid proteinX: Ubiquitin-relatedH: Ubiquitin-likeT: Stap_Strp_tox_CF:ECOD (20:10:01)
A [auth L]e3ntcL1 A: Alpha-beta plaitsX: Phage tail protein-likeH: Transmembrane protein 14AT: SdrG_C_CF:ECOD (20:10:01)

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]Fab KD-247, anti-V3 [HIV-1] VH-CH1 Chimeric (chimeric) IGHV1-63*02, IGHJ4*01, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202609-0)
A [auth L]Fab KD-247, anti-V3 [HIV-1] L-KAPPA Chimeric (chimeric) IGKV8-19*01, IGKJ1*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202609-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
B [auth H]Heavy ChainIGHV1 --SAbDab (2026-03-13)
A [auth L]Light ChainIGKV8 Kappa-SAbDab (2026-03-13)

Thera-SAbDab Antibody Annotation Thera-SAbDab Database Homepage

ChainNameTargetProvenance Source
B [auth H] Suvizumab HIV-1 gp120Therapeutic SAbDab (2026-03-13)
A [auth L] Suvizumab HIV-1 gp120Therapeutic SAbDab (2026-03-13)