2OQJ | pdb_00002oqj

Crystal structure analysis of Fab 2G12 in complex with peptide 2G12.1

External Resource: Annotation

Domain Annotation: SCOP/SCOPe 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)
K	d2oqjk1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin heavy chain variable domain, VH	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
K	d2oqjk2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
H	d2oqjh1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin heavy chain variable domain, VH	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
H	d2oqjh2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
E	d2oqje1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin heavy chain variable domain, VH	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
E	d2oqje2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d2oqjb1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	V set domains (antibody variable domain-like)	Immunoglobulin heavy chain variable domain, VH	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d2oqjb2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	Immunoglobulin heavy chain gamma constant domain 1, CH1-gamma	(Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
J	Proteasome	e2oqjJ1	A: a/b three-layered sandwiches	X: HTH	H: Nudix	T: Nudix	F: Proteasome	ECOD (v294.1)
G	Proteasome	e2oqjG1	A: a/b three-layered sandwiches	X: HTH	H: Nudix	T: Nudix	F: Proteasome	ECOD (v294.1)
D	Proteasome	e2oqjD1	A: a/b three-layered sandwiches	X: HTH	H: Nudix	T: Nudix	F: Proteasome	ECOD (v294.1)
A	V-set	e2oqjA1	A: a/b three-layered sandwiches	X: Profilin-like	H: sensor domains	T: sensor domains	F: V-set	ECOD (v294.1)
K	Copper-bind	e2oqjK1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Copper-bind	ECOD (v294.1)
H	Copper-bind	e2oqjH1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Copper-bind	ECOD (v294.1)
E	Copper-bind	e2oqjE1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Copper-bind	ECOD (v294.1)
B	Copper-bind	e2oqjB1	A: a/b three-layered sandwiches	X: Phage tail fiber protein trimerization domain	H: beta-Prism I	T: beta-Prism I	F: Copper-bind	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
J	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
G	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
A	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
K	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
H	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
E	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B	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
A, D, G, J	2G12 mAb, anti-gp120 oligomannose [HIV-1], neutralizing	L-KAPPA	Homo sapiens (human)	IGKV1-503, IGKJ101, IGKJ501, IGKC01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202611-0)
B, E, H, K	2G12 mAb, anti-gp120 oligomannose [HIV-1], neutralizing	VH-CH1	Homo sapiens (human)	IGHV3-2101, IGHV3-2102, IGHV3-2104, IGHV3-2103, IGHJ501, IGHG101, IGHG102, IGHG104, IGHG1*05	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202611-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
A, D, G, J	Light Chain	IGKV1	Kappa	peptide 2g12.1 (acppshvldmrsgtclaaegk)	SAbDab (2026-03-27)
B, E, H, K	Heavy Chain	IGHV3	-	peptide 2g12.1 (acppshvldmrsgtclaaegk)	SAbDab (2026-03-27)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, D, G, J	Fab 2G12 light chain	-	-	-
B, E, H, K	Fab 2G12 heavy chain	-	response to stimulus immune response immune system process adaptive immune response	cell periphery cellular anatomical structure plasma membrane membrane protein-containing complex immunoglobulin complex extracellular region
C, F, I, L	peptide 2G12.1 (ACPPSHVLDMRSGTCLAAEGK)	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
B, E, H, K	IPR003597	Immunoglobulin C1-set	Domain
B, E, H, K	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
B, E, H, K	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
B, E, H, K	IPR013106	Immunoglobulin V-set domain	Domain
B, E, H, K	IPR003599	Immunoglobulin domain subtype	Domain
B, E, H, K	IPR007110	Immunoglobulin-like domain	Domain
B, E, H, K	IPR050380	Immune Recognition and Response Modulators	Family
B, E, H, K	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site

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.