6N81 | pdb_00006n81

Crystal structure of GII.4 2002 norovirus P domain in complex with cross-reactive human antibody A1227

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
IMGT Antibody Annotation
SAbDab Antibody Annotation
Protein Family 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)
E [auth H]	d6n81h_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
D [auth C]	d6n81c_	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
F [auth L]	d6n81l2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
F [auth L]	d6n81l1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C [auth D]	d6n81d2	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	C1 set domains (antibody constant domain-like)	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
C [auth D]	d6n81d1	All beta proteins	Immunoglobulin-like beta-sandwich	Immunoglobulin	automated matches	automated matches	human (Homo sapiens ) [TaxId: 9606 ],	SCOPe (2.08)
B	d6n81b_	All beta proteins	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Positive stranded ssRNA viruses	automated matches	automated matches	(Norovirus Hu/GII.4/Farmington Hills/2004/USA ) [TaxId: 1182143 ],	SCOPe (2.08)
A	d6n81a_	All beta proteins	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Positive stranded ssRNA viruses	automated matches	automated matches	(Norovirus Hu/GII.4/Farmington Hills/2004/USA ) [TaxId: 1182143 ],	SCOPe (2.08)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
E [auth H]	C1-set_1	e6n81H1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
E [auth H]	V-set_12	e6n81H2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)
D [auth C]	C1-set_1	e6n81C2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_1	ECOD (1.6)
D [auth C]	V-set_12	e6n81C1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_12	ECOD (1.6)
F [auth L]	C1-set_4	e6n81L1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
F [auth L]	V-set	e6n81L2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
C [auth D]	C1-set_4	e6n81D2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: C1-set_4	ECOD (1.6)
C [auth D]	V-set	e6n81D1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set	ECOD (1.6)
B	Calici_coat_C_N,Calici_coat_C_C	e6n81B1	A: beta sandwiches	X: jelly-roll	H: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)	T: Nucleoplasmin-like/VP (viral coat and capsid proteins)	F: Calici_coat_C_N,Calici_coat_C_C	ECOD (1.6)
A	Calici_coat_C_N,Calici_coat_C_C	e6n81A1	A: beta sandwiches	X: jelly-roll	H: Nucleoplasmin-like/VP (viral coat and capsid proteins) (From Topology)	T: Nucleoplasmin-like/VP (viral coat and capsid proteins)	F: Calici_coat_C_N,Calici_coat_C_C	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
E [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
D [auth C]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
F [auth L]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
C [auth D]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (utative)
B	2.40.510.10	Mainly Beta	Beta Barrel	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Positive stranded ssRNA viruses	CATH (utative)
B	2.40.30.120	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (utative)
A	2.40.510.10	Mainly Beta	Beta Barrel	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Positive stranded ssRNA viruses	CATH (utative)
A	2.40.30.120	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	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
D [auth C], E [auth H]	Fab A1227	VH-CH1	Homo sapiens (human)	IGHV3-2304, IGHJ601, IGHG101, IGHG102, IGHG104, IGHG105, IGHG112, IGHG114, IGHG113, IGHG109, IGHG110, IGHG107, IGHG1*11	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202549-0)
C [auth D], F [auth L]	Fab A1227	L-KAPPA	Homo sapiens (human)	IGKV1-3901, IGKV1D-3901, IGKJ101, IGKC01	V-DOMAIN V-KAPPA, C-DOMAIN C-KAPPA	IG	FAB-GAMMA-1_KAPPA	IMGT (202549-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
D [auth C], E [auth H]	Heavy Chain	IGHV3	-	major capsid protein	SAbDab (2025-12-19)
C [auth D], F [auth L]	Light Chain	IGKV1	Kappa	major capsid protein	SAbDab (2025-12-19)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF08435	Calicivirus coat protein C-terminal (Calici_coat_C)	Calicivirus coat protein C-terminal	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
D [auth C], E [auth H]	A1227 Fab heavy chain	-	-	-
C [auth D], F [auth L]	A1227 Fab light chain	-	-	-
A, B	Major capsid protein	-	-	virion component host cellular component host intracellular part cellular anatomical structure host cell cytoplasm host cell part host intracellular region other organism part

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR029053	Viral coat protein subunit	Homologous Superfamily
A, B	IPR004005	Calicivirus coat protein	Domain
A, B	IPR013643	Calicivirus coat protein C-terminal	Domain
A, B	IPR033703	Picornavirus/Calicivirus coat protein	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.