3GHB | pdb_00003ghb

Crystal structure of anti-HIV-1 Fab 447-52D in complex with V3 peptide W2RW020

External Resource: Annotation

Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E [auth I]	adh_short	e3ghbI1	A: alpha bundles	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: adh_short	ECOD (develop294)
B [auth H]	OmpA	e3ghbH1	A: alpha bundles	X: Cystatin-like	H: NTF2-like	T: NTF2-like	F: OmpA	ECOD (develop294)
D [auth M]	adh_short	e3ghbM1	A: alpha bundles	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: adh_short	ECOD (develop294)
A [auth L]	OmpA	e3ghbL1	A: alpha bundles	X: Cystatin-like	H: NTF2-like	T: NTF2-like	F: OmpA	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E [auth I]	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)
D [auth M]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	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
B [auth H], E [auth I]	447-52D mAb, anti-gp120 [HIV-1], neutralizing	VH-CH1	Homo sapiens (human)	IGHV3-1507, IGHJ603, IGHG301, IGHG303, IGHG304, IGHG305, IGHG306, IGHG307, IGHG308, IGHG309, IGHG310, IGHG311, IGHG312, IGHG313, IGHG314, IGHG316, IGHG317, IGHG318, IGHG319, IGHG315	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-3_LAMBDA	IMGT (202610-0)
A [auth L], D [auth M]	447-52D mAb, anti-gp120 [HIV-1], neutralizing	L-LAMBDA	Homo sapiens (human)	IGLV1-5101, IGLJ302, IGLC201, IGLC202, IGLC3*04	V-DOMAIN V-LAMBDA, C-DOMAIN C-LAMBDA	IG	FAB-GAMMA-3_LAMBDA	IMGT (202610-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth H], E [auth I]	Heavy Chain	IGHV3	-	envelope glycoprotein	SAbDab (2026-03-20)
A [auth L], D [auth M]	Light Chain	IGLV1	Lambda	envelope glycoprotein	SAbDab (2026-03-20)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth P], F [auth Q]	Envelope glycoprotein	-	viral process membrane fusion involved in viral entry into host cell virion attachment to host cell biological process involved in interspecies interaction between organisms adhesion of symbiont to host cell viral life cycle adhesion of symbiont to host biological process involved in interaction with host biological process involved in symbiotic interaction symbiont entry into host cell symbiont entry into host	virion component viral membrane viral envelope virion membrane
B [auth H], E [auth I]	Fab 447-52D, heavy chain	-	-	-
A [auth L], D [auth M]	Fab 447-52D, light chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
C [auth P], F [auth Q]	IPR000777	Human immunodeficiency virus 1, envelope glycoprotein Gp120	Domain
C [auth P], F [auth Q]	IPR036377	Gp120 core superfamily	Homologous Superfamily

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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.