5TJW | pdb_00005tjw

Influenza A virus Nucleoprotein in Complex with Inhibitory Nanobody

External Resource: Annotation

Domain Annotation: SCOP2 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: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2B Superfamily	Flu NP-like	8034575	3001484	SCOP2B (2022-06-29)

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B [auth K]	V-set_8	e5tjwK1	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: V-set_8	ECOD (1.6)
A	Flu_NP_2nd	e5tjwA1	A: alpha bundles	X: Helical bundle in flu nucleocapsid protein (From Topology)	H: Helical bundle in flu nucleocapsid protein (From Topology)	T: Helical bundle in flu nucleocapsid protein	F: Flu_NP_2nd	ECOD (1.6)
A	Flu_NP_1st	e5tjwA2	A: a+b complex topology	X: Flu NP-like (From Topology)	H: Flu NP-like (From Topology)	T: Flu NP-like	F: Flu_NP_1st	ECOD (1.6)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B [auth K]	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
B [auth K]	VHH1	VH	Vicugna pacos (alpaca)	IGHV3-301, IGHJ401	V-DOMAIN VH	IG	VH	IMGT (202549-0)

SAbDab Antibody Annotation SAbDab Database Homepage

Chain	Chain Class	Chain Subclass	Chain Type	Antigen Name(s)	Provenance Source
B [auth K]	Heavy Chain	IGHV1	-	nucleoprotein	SAbDab (2025-12-19)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
B [auth K]	NP-specific inhibitory VHH	-	-	-
A	Nucleoprotein	structural molecule activity RNA binding binding nucleic acid binding identical protein binding protein binding	biological process involved in interspecies interaction between organisms viral penetration into host nucleus intracellular transport of virus viral process viral life cycle transport of virus biological process involved in symbiotic interaction symbiont entry into host cell symbiont entry into host biological process involved in interaction with host	host cellular component cellular anatomical structure host cell other organism part host intracellular membrane-bounded organelle host intracellular part host cell part host intracellular region host cell nucleus host intracellular organelle protein-containing complex ribonucleoprotein complex viral nucleocapsid viral capsid host cellular component cellular anatomical structure host cell other organism part host intracellular membrane-bounded organelle host intracellular part host cell part host intracellular region host cell nucleus host intracellular organelle protein-containing complex ribonucleoprotein complex viral nucleocapsid viral capsid virion component helical viral capsid

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR002141	Influenza virus nucleoprotein (NP)	Family

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.