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

ChainsDomain InfoClassFoldSuperfamilyFamilyDomainSpeciesProvenance Source (Version)
A [auth G]d1g9mg_ Alpha and beta proteins (a+b) gp120 core gp120 core gp120 core gp120 core (Human immunodeficiency virus 1 ) [TaxId: 11676 ], (Human immunodeficiency virus 1 ) [TaxId: 11676 ], (Human immunodeficiency virus 1 ) [TaxId: 11676 ], SCOPe (2.08)
B [auth C]d1g9mc1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) CD4 V-set domains human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
B [auth C]d1g9mc2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C2 set domains CD4 C2-set domains human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
C [auth L]d1g9ml1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) Immunoglobulin light chain kappa variable domain, VL-kappa human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
C [auth L]d1g9ml2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) Immunoglobulin light chain kappa constant domain, CL-kappa human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
D [auth H]d1g9mh1 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin V set domains (antibody variable domain-like) Immunoglobulin heavy chain variable domain, VH human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)
D [auth H]d1g9mh2 All beta proteins Immunoglobulin-like beta-sandwich Immunoglobulin C1 set domains (antibody constant domain-like) Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma human (Homo sapiens ) [TaxId: 9606 ], SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

ChainsTypeFamily Name Domain Identifier Family IdentifierProvenance Source (Version)
A [auth G]SCOP2 Familygp120 core 8080362 4002534 SCOP2 (2022-06-29)
A [auth G]SCOP2 Superfamilygp120 core 8080363 3001390 SCOP2 (2022-06-29)
B [auth C]SCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8054739 3000071 SCOP2B (2022-06-29)
B [auth C]SCOP2B SuperfamilyImmunoglobulin (Ig) domain-like 8054493 3000071 SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

ChainsFamily NameDomain Identifier ArchitecturePossible HomologyHomologyTopologyFamilyProvenance Source (Version)
A [auth G]GP120_3rde1g9mG2 A: a+b two layersX: Ribosomal protein L31e-likeH: Ribosomal protein L31e/gp120 outer domain (From Topology)T: Ribosomal protein L31e/gp120 outer domainF: GP120_3rdECOD (1.6)
A [auth G]GP120_1ste1g9mG1 A: a+b two layersX: gp120 inner domain (From Topology)H: gp120 inner domain (From Topology)T: gp120 inner domainF: GP120_1stECOD (1.6)
B [auth C]C2-sete1g9mC2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C2-setECOD (1.6)
B [auth C]V-set_9e1g9mC1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_9ECOD (1.6)
C [auth L]C1-set_4e1g9mL2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_4ECOD (1.6)
C [auth L]V-sete1g9mL1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-setECOD (1.6)
D [auth H]V-set_8e1g9mH1 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: V-set_8ECOD (1.6)
D [auth H]C1-set_1e1g9mH2 A: beta sandwichesX: Immunoglobulin-like beta-sandwichH: Immunoglobulin-relatedT: Immunoglobulin/Fibronectin type III/E set domains/PapD-likeF: C1-set_1ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

ChainDomainClassArchitectureTopologyHomologyProvenance Source (Version)
A [auth G]2.170.40.20 Mainly Beta Beta Complex HIV Envelope Protein Gp120 Chain GCATH (4.3.0)
B [auth C]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
C [auth L]2.60.40.10 Mainly Beta Sandwich Immunoglobulin-like ImmunoglobulinsCATH (4.3.0)
D [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
B [auth C]CD4 1V-1C-LIKE Homo sapiens (human) CD4 V-LIKE-DOMAIN V-LIKE, C-LIKE-DOMAIN C-LIKE RPI 1V-1C-LIKE IMGT (202507-0)
C [auth L]17B mAb, anti-gp120 [HIV-1] L-KAPPA Homo sapiens (human) IGKV3-15*01, IGKV3D-15*01, IGKJ5*01, IGKC*01 V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA IG FAB-GAMMA-1_KAPPA IMGT (202507-0)
D [auth H]17B mAb, anti-gp120 [HIV-1] VH-CH1 Homo sapiens (human) IGHV1-69*02, IGHV1-69*04, IGHV1-69*08, IGHV1-69*09, IGHJ5*01, IGHJ5*02, IGHG1*01, IGHG1*02, IGHG1*04, IGHG1*05 V-DOMAIN VH, C-DOMAIN CH1 IG FAB-GAMMA-1_KAPPA IMGT (202507-0)

SAbDab Antibody Annotation SAbDab Database Homepage

ChainChain ClassChain SubclassChain TypeAntigen Name(s) Provenance Source
C [auth L]Light ChainIGKV3 Kappaenvelope glycoprotein gp120SAbDab (2025-02-28)
D [auth H]Heavy ChainIGHV1 -envelope glycoprotein gp120SAbDab (2025-02-28)

Protein Family Annotation Pfam Database Homepage

ChainsAccessionNameDescriptionCommentsSource
A [auth G]PF00516Envelope glycoprotein GP120 (GP120)Envelope glycoprotein GP120The envelope glycoprotein Gp160 of HIV1 is cleaved into the surface protein Gp120 and the transmembrane protein Gp41. The entry of HIV requires interaction of viral GP120 with the CD4 glycoprotein (Swiss:P01730) and a chemokine receptor on the cell s ...Domain
B [auth C]PF05790Immunoglobulin C2-set domain (C2-set)Immunoglobulin C2-set domainDomain
B [auth C]PF00047Immunoglobulin domain (ig)Immunoglobulin domainMembers of the immunoglobulin superfamily are found in hundreds of proteins of different functions. Examples include antibodies, the giant muscle kinase titin and receptor tyrosine kinases. Immunoglobulin-like domains may be involved in protein-prote ...Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

ChainsPolymerMolecular FunctionBiological ProcessCellular Component
A [auth G]ENVELOPE GLYCOPROTEIN GP120
B [auth C]T-CELL SURFACE GLYCOPROTEIN CD4
C [auth L]ANTIBODY 17B, LIGHT CHAIN---
D [auth H]ANTIBODY 17B, HEAVY CHAIN---

Pharos: Disease Associations Pharos Homepage Annotation

ChainsDrug Target  Associated Disease
B [auth C]PharosP01730