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
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]	TetR_N	e6n81H1	A: alpha bundles	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: TetR_N	ECOD (develop294)
D [auth C]	Glyco_hydro_32N	e6n81C1	A: alpha bundles	X: Ten stranded beta/alpha barrel	H: HTH	T: Ribbon-helix-helix	F: Glyco_hydro_32N	ECOD (develop294)
F [auth L]	TetR_N	e6n81L1	A: alpha bundles	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: TetR_N	ECOD (develop294)
C [auth D]	Glyco_hydro_32N	e6n81D1	A: alpha bundles	X: Ten stranded beta/alpha barrel	H: HTH	T: Ribbon-helix-helix	F: Glyco_hydro_32N	ECOD (develop294)
B	TetR_N	e6n81B1	A: alpha bundles	X: Ten stranded beta/alpha barrel	H: Ten stranded beta/alpha barrel	T: Ten stranded beta/alpha barrel	F: TetR_N	ECOD (develop294)
A	Glyco_hydro_32N	e6n81A1	A: alpha bundles	X: Ten stranded beta/alpha barrel	H: HTH	T: Ribbon-helix-helix	F: Glyco_hydro_32N	ECOD (develop294)

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 (202610-0)
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 (202610-0)

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 (2026-03-20)
C [auth D], F [auth L]	Light Chain	IGKV1	Kappa	major capsid protein	SAbDab (2026-03-20)

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