Annotations: 4NHG

Crystal Structure of 2G12 IgG Dimer

External Resource: Annotation

Domain Annotation: ECOD Classification
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)
R [auth P]	p450	e4nhgP1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
Q [auth O]	p450	e4nhgO1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
L [auth Y]	p450	e4nhgY1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
K [auth X]	p450	e4nhgX1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
J [auth N]	p450	e4nhgN1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
I [auth J]	C1-set	e4nhgJ1	A: alpha arrays	X: Repetitive alpha hairpins	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Nicotinate/Quinolinate PRTase N-terminal domain-like	F: C1-set	ECOD (v295.2)
N [auth K]	p450	e4nhgK1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
O [auth L]	p450	e4nhgL1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
G	p450	e4nhgG1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
F	p450	e4nhgF1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
C	p450	e4nhgC1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
B	C1-set	e4nhgB1	A: alpha arrays	X: Repetitive alpha hairpins	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Nicotinate/Quinolinate PRTase N-terminal domain-like	F: C1-set	ECOD (v295.2)
P [auth M]	p450	e4nhgM1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
M [auth H]	p450	e4nhgH1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
H [auth I]	p450	e4nhgI1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
E	p450	e4nhgE1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
D	p450	e4nhgD1	A: alpha arrays	X: DEATH domain	H: 6-phosphogluconate dehydrogenase C-terminal domain-like	T: 6-phosphogluconate dehydrogenase C-terminal domain-like	F: p450	ECOD (v295.2)
A	C1-set	e4nhgA1	A: alpha arrays	X: Repetitive alpha hairpins	H: alpha/beta-Hammerhead/Barrel-sandwich hybrid	T: Nicotinate/Quinolinate PRTase N-terminal domain-like	F: C1-set	ECOD (v295.2)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B, C, F, G, N [auth K], B, C, F, G, N [auth K], O [auth L]	Light Chain	IGKV1	Kappa	-	SAbDab (2026-08-28)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], R [auth P]	Hepatitis B virus receptor binding protein	-	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
B, C, F, G, N [auth K], B, C, F, G, N [auth K], O [auth L]	2G12 IgG dimer light chain	-	-	-
A, D, E, H [auth I], M [auth H], A, D, E, H [auth I], M [auth H], P [auth M]	2G12 IgG dimer heavy chain	-	-	-

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], R [auth P]	IPR003597	Immunoglobulin C1-set	Domain
I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], R [auth P]	IPR013783	Immunoglobulin-like fold	Homologous Superfamily
I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], R [auth P]	IPR036179	Immunoglobulin-like domain superfamily	Homologous Superfamily
I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], R [auth P]	IPR007110	Immunoglobulin-like domain	Domain
I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], R [auth P]	IPR050380	Immune Recognition and Response Modulators	Family
I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], I [auth J], J [auth N], K [auth X], L [auth Y], Q [auth O], R [auth P]	IPR003006	Immunoglobulin/major histocompatibility complex, conserved site	Conserved Site

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4NHG | pdb_00004nhg

Crystal Structure of 2G12 IgG Dimer

External Resource: Annotation

Domain Annotation: ECOD Classification ECOD Database Homepage

SAbDab Antibody Annotation SAbDab Database Homepage

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

InterPro: Protein Family Classification InterPro Database Homepage