6P8M | pdb_00006p8m

Crystal Structure of Antibody P-p3b3 A60C Heavy Chain in Complex with 426c HIV-1 gp120 core G459C

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)
C [auth L]		e6p8mL1	A: Nat/Ivy	X: Acyl-CoA N-acyltransferases (Nat)	H: Acyl-CoA N-acyltransferases (Nat)	T: SBP_bac_1	F:	ECOD (20:10:01)
B [auth H]		e6p8mH1	A: Nat/Ivy	X: Acyl-CoA N-acyltransferases (Nat)	H: Acyl-CoA N-acyltransferases (Nat)	T: SBP_bac_1	F:	ECOD (20:10:01)
A [auth C]		e6p8mC1	A: Nat/Ivy	X: Acyl-CoA N-acyltransferases (Nat)	H: Acyl-CoA N-acyltransferases (Nat)	T: SBP_bac_1	F:	ECOD (20:10:01)

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 (utative)
B [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)

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]	Fab P-p3b3 mutant A60C, anti-gp120 [HIV-1], neutralizing	L-KAPPA	Homo sapiens (human)	IGKV8-3001, IGKJ203, IGKJ401, IGKJ501, IGKC*01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202609-0)
B [auth H]	Fab P-p3b3 mutant A60C, anti-gp120 [HIV-1], neutralizing	VH-CH1	Homo sapiens (human)	IGHV1-202, IGHJ101, IGHG103, IGHG108, IGHG1*06	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202609-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
C [auth L]	Light Chain	IGKV8	Kappa	gp120	SAbDab (2026-03-13)
B [auth H]	Heavy Chain	IGHV1	-	gp120	SAbDab (2026-03-13)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
C [auth L]	P-p3b3 Light Chain	-	-	-
B [auth H]	P-p3b3 Heavy Chain	-	-	-
A [auth C]	Gp120	structural molecule activity	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 host cell plasma membrane host cellular component cellular anatomical structure 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 virion component viral membrane viral envelope host cell plasma membrane host cellular component cellular anatomical structure 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 [auth C]	IPR000777	Human immunodeficiency virus 1, envelope glycoprotein Gp120	Domain
A [auth C]	IPR036377	Gp120 core superfamily	Homologous Superfamily
A [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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.