9MSY | pdb_00009msy

G002-480-0546 Fab in complex with V703-0537_T278M_L14 SOSIP and BG18 Fab

External Resource: Annotation

SAbDab Antibody Annotation
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
E [auth H], J [auth K], O [auth P]	Heavy Chain	IGHV1	-	v703-0537_t278m_l14 sosip	SAbDab (2025-12-19)
D [auth L], I [auth N], N [auth R]	Light Chain	IGKV3	Kappa	v703-0537_t278m_l14 sosip	SAbDab (2025-12-19)
C [auth I], H [auth M], M [auth Q]	Light Chain	IGLV3	Lambda	v703-0537_t278m_l14 sosip	SAbDab (2025-12-19)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, F [auth B], K [auth C]	PF00516	Envelope glycoprotein GP120 (GP120)	Envelope glycoprotein GP120	The 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 ...	The 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 surface [1]. Gp160 us proteolytically cleaved n the trans-Golgi and activated by cellular furin or furin-like proteases to produce gp120 and gp41 [1,2].	Domain
A, F [auth B], K [auth C]	PF00517	Retroviral envelope protein (GP41)	Retroviral envelope protein	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
E [auth H], J [auth K], O [auth P]	G002-480-0546 Fab heavy chain	-	-	-
D [auth L], I [auth N], N [auth R]	G002-480-0546 Fab light chain	-	-	-
C [auth I], H [auth M], M [auth Q]	BG18 Fab light chain	-	-	-
B [auth G], G [auth J], L [auth O]	BG18 Fab heavy chain	-	-	-
A, F [auth B], K [auth C]	V703-0537_T278M_L14 SOSIP	structural molecule activity	viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell import into cell receptor-mediated endocytosis of virus by host cell biological process involved in interspecies interaction between organisms transport viral life cycle establishment of localization vesicle-mediated transport biological process involved in interaction with host biological process involved in symbiotic interaction localization symbiont entry into host cell viral process fusion of virus membrane with host endosome membrane membrane fusion involved in viral entry into host cell import into cell receptor-mediated endocytosis of virus by host cell biological process involved in interspecies interaction between organisms transport viral life cycle establishment of localization vesicle-mediated transport biological process involved in interaction with host biological process involved in symbiotic interaction localization symbiont entry into host cell clathrin-dependent endocytosis symbiont entry into host cellular process clathrin-dependent endocytosis of virus by host cell receptor-mediated endocytosis endocytosis endocytosis involved in viral entry into host cell virion attachment to host cell adhesion of symbiont to host cell adhesion of symbiont to host	virion component viral membrane viral envelope cellular anatomical structure membrane host cell plasma membrane host cellular component host cell part host cell membrane other organism part virion membrane host intracellular membrane-bounded organelle host intracellular part host cell cytoplasm part virion component viral membrane viral envelope cellular anatomical structure membrane host cell plasma membrane host cellular component host cell part host cell membrane other organism part virion membrane host intracellular membrane-bounded organelle host intracellular part host cell cytoplasm part host intracellular organelle host cell endosome membrane host cell cytoplasm host cell endosome host intracellular region

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, F [auth B], K [auth C]	IPR000777	Human immunodeficiency virus 1, envelope glycoprotein Gp120	Domain
A, F [auth B], K [auth C]	IPR036377	Gp120 core superfamily	Homologous Superfamily
A, F [auth B], K [auth C]	IPR000328	Retroviral envelope protein GP41-like	Domain

RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729.