3V7A | pdb_00003v7a

Structural basis for broad detection of genogroup II noroviruses by a monoclonal antibody that binds to a site occluded in the viral particle

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)
A [auth F]	I-set	e3v7aF1	A: alpha bundles	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: I-set	ECOD (develop294)
C [auth E]	Rrf2	e3v7aE1	A: alpha bundles	X: beta-Grasp	H: HTH	T: winged helix domain	F: Rrf2	ECOD (develop294)
B [auth G]	I-set	e3v7aG1	A: alpha bundles	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: I-set	ECOD (develop294)
D [auth H]	V-set	e3v7aH1	A: alpha bundles	X: beta-Grasp	H: HTH	T: winged helix domain	F: V-set	ECOD (develop294)
E [auth A]	Calici_coat_C	e3v7aA1	A: alpha bundles	X: C-terminal additional helical subdomain in reovirus polymerase lambda3	H: C-terminal additional helical subdomain in reovirus polymerase lambda3	T: C-terminal additional helical subdomain in reovirus polymerase lambda3	F: Calici_coat_C	ECOD (develop294)
F [auth B]	Calici_coat_C	e3v7aB1	A: alpha bundles	X: C-terminal additional helical subdomain in reovirus polymerase lambda3	H: C-terminal additional helical subdomain in reovirus polymerase lambda3	T: C-terminal additional helical subdomain in reovirus polymerase lambda3	F: Calici_coat_C	ECOD (develop294)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A [auth F]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
C [auth E]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
B [auth G]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
D [auth H]	2.60.40.10	Mainly Beta	Sandwich	Immunoglobulin-like	Immunoglobulins	CATH (4.3.0)
E [auth A]	2.40.510.10	Mainly Beta	Beta Barrel	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Positive stranded ssRNA viruses	CATH (4.3.0)
E [auth A]	2.40.30.120	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	CATH (4.3.0)
F [auth B]	2.40.510.10	Mainly Beta	Beta Barrel	Nucleoplasmin-like/VP (viral coat and capsid proteins)	Positive stranded ssRNA viruses	CATH (4.3.0)
F [auth B]	2.40.30.120	Mainly Beta	Beta Barrel	Elongation Factor Tu (Ef-tu)	domain 3	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 [auth F], C [auth E]	5B18 Fab, anti-norovirus	VH-CH1	Mus musculus (house mouse)	IGHV1-5403, IGHJ401, IGHG1*02	V-DOMAIN VH, C-DOMAIN CH1	IG	FAB-GAMMA-1_KAPPA	IMGT (202610-0)
B [auth G], D [auth H]	5B18 Fab, anti-norovirus	L-KAPPA	Mus musculus (house mouse)	IGKV12-4401, IGKJ101, IGKJ102, IGKC01, IGKC*02	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
A [auth F], C [auth E]	Heavy Chain	IGHV1	-	capsid	SAbDab (2026-03-20)
B [auth G], D [auth H]	Light Chain	IGKV12	Kappa	capsid	SAbDab (2026-03-20)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A [auth F], C [auth E]	5B18 heavy chain	-	-	-
B [auth G], D [auth H]	5B18 kappa chain	-	-	-
E [auth A], F [auth B]	Capsid	-	-	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
E [auth A], F [auth B]	IPR029053	Viral coat protein subunit	Homologous Superfamily
E [auth A], F [auth B]	IPR004005	Calicivirus coat protein	Domain
E [auth A], F [auth B]	IPR013643	Calicivirus coat protein C-terminal	Domain
E [auth A], F [auth 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.