Annotations: 4LST

Crystal structure of broadly and potently neutralizing antibody VRC01 in complex with HIV-1 clade C strain ZM176.66 gp120

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
C [auth L]	d4lstl1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A [auth G]	SCOP2 Family	gp120 core	8100783	4002534	SCOP2 (2022-06-29)
A [auth G]	SCOP2 Superfamily	gp120 core	8100784	3001390	SCOP2 (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
C [auth L]		e4lstL1	A: alpha arrays	X: beta-propeller-like	H: beta-propeller	T: 6-bladed	F:	ECOD (v295.2)
B [auth H]	Pribosyltran	e4lstH1	A: alpha arrays	X: PRTase-like	H: PRTase-like	T: PRTase-like	F: Pribosyltran	ECOD (v295.2)
A [auth G]	Rieske	e4lstG1	A: alpha arrays	X: Nat/Ivy	H: Acyl-CoA N-acyltransferases (Nat)	T: Acyl-CoA N-acyltransferases (Nat)	F: Rieske	ECOD (v295.2)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
C [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth G]	2.170.40.20	Mainly Beta	Beta Complex	HIV Envelope Protein Gp120	Chain G	CATH (4.3.0)

IMGT Antibody Annotation IMGT Database Homepage

Chain	Protein Name	Description	Organism Name	Gene Allele Name(s)	Domain Name(s)	Receptor Type	Receptor Description	Provenance Source
C [auth L]	VRC01 mAb, anti-gp120 CD4-binding site (CD4bs) [HIV-1], broadly	L-KAPPA	Homo sapiens (human)	IGKV3-2001, IGKJ101, IGKC*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202637-0)
B [auth H]	VRC01 mAb, anti-gp120 CD4-binding site (CD4bs) [HIV-1], broadly	VH-CH1	Homo sapiens (human)	IGHV1-1801, IGHV1-1804, IGHJ201, IGHG101, IGHG102, IGHG104	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202637-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L]	Light Chain	IGKV3	Kappa	envelope glycoprotein gp120 of hiv-1 clade c	SAbDab (2026-09-25)
B [auth H]	Heavy Chain	IGHV1	-	envelope glycoprotein gp120 of hiv-1 clade c	SAbDab (2026-09-25)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth L]	LIGHT CHAIN OF ANTIBODY VRC01	-	-	-
B [auth H]	HEAVY CHAIN OF ANTIBODY VRC01	-	-	-
A [auth G]	ENVELOPE GLYCOPROTEIN GP120 of HIV-1 clade C	-	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 virion membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth G]	IPR000777	Human immunodeficiency virus 1, envelope glycoprotein Gp120	Domain
A [auth G]	IPR036377	Gp120 core superfamily	Homologous Superfamily