Annotations: 1XEQ

Domain Annotation: SCOP/SCOPe Classification SCOP-e Database Homepage

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
B	d1xeqb_	All alpha proteins	S15/NS1 RNA-binding domain	S15/NS1 RNA-binding domain	N-terminal, RNA-binding domain of nonstructural protein NS1	N-terminal, RNA-binding domain of nonstructural protein NS1	(Influenza B virus (B/Lee/1940) ) [TaxId: 518987 ],	SCOPe (2.08)
A	d1xeqa1	All alpha proteins	S15/NS1 RNA-binding domain	S15/NS1 RNA-binding domain	N-terminal, RNA-binding domain of nonstructural protein NS1	N-terminal, RNA-binding domain of nonstructural protein NS1	(Influenza B virus (B/Lee/1940) ) [TaxId: 518987 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
B	SCOP2B Superfamily	S15/NS1 RNA-binding domain	8033708	3001284	SCOP2B (2022-06-29)
A	SCOP2 Family	N-terminal, RNA-binding domain of nonstructural protein NS1	8021328	4000764	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	S15/NS1 RNA-binding domain	8033708	3001284	SCOP2 (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		e1xeqB2	A: Fusion glycoprotein F2	X: Fusion glycoprotein F2	H: Fusion glycoprotein F2	T: SRP_SPB	F:	ECOD (20:10:01)
A		e1xeqA1	A: S15/NS1 RNA-binding domain	X: S15/NS1 RNA-binding domain	H: S15/NS1 RNA-binding domain	T: Flu_B_NS1	F:	ECOD (20:10:01)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	1.10.287.10	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	S15/NS1, RNA-binding	CATH (4.3.0)
A	1.10.287.10	Mainly Alpha	Orthogonal Bundle	Helix Hairpins	S15/NS1, RNA-binding	CATH (4.3.0)

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Nonstructural protein NS1	enzyme regulator activity protein kinase inhibitor activity molecular function inhibitor activity molecular function regulator activity enzyme inhibitor activity protein kinase regulator activity protein serine/threonine kinase inhibitor activity kinase inhibitor activity kinase regulator activity RNA binding binding nucleic acid binding	symbiont-mediated perturbation of host defense response symbiont-mediated suppression of host ISG15-protein conjugation biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host immune response biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated suppression of host immune response symbiont-mediated suppression of host innate immune response symbiont-mediated perturbation of host process symbiont-mediated perturbation of host innate immune response modulation of process of another organism symbiont-mediated perturbation of host cellular process response to stimulus response to other organism symbiont-mediated perturbation of host defense response symbiont-mediated suppression of host ISG15-protein conjugation biological process involved in interspecies interaction between organisms symbiont-mediated perturbation of host immune response biological process involved in interaction with host biological process involved in symbiotic interaction symbiont-mediated suppression of host immune response symbiont-mediated suppression of host innate immune response symbiont-mediated perturbation of host process symbiont-mediated perturbation of host innate immune response modulation of process of another organism symbiont-mediated perturbation of host cellular process response to stimulus response to other organism symbiont-mediated perturbation of host defenses symbiont-mediated suppression of host PKR/eIFalpha signaling symbiont-mediated response to host defenses response to external stimulus response to biotic stimulus symbiont-mediated suppression of host signal transduction pathway symbiont-mediated suppression of host-directed shutoff of host translation symbiont-mediated suppression of host defenses response to host response to external biotic stimulus symbiont-mediated perturbation of host signal transduction pathway symbiont-mediated suppression of host interferon-mediated signaling pathway symbiont-mediated suppression of host type I interferon-mediated signaling pathway	host intracellular membrane-bounded organelle host cellular component host intracellular part cellular anatomical structure host cell part host intracellular region host cell nucleus other organism part host intracellular organelle host cell cytoplasm

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR009068	uS15/NS1, RNA-binding domain superfamily	Homologous Superfamily
A, B	IPR004208	Influenza non-structural protein (NS1)	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. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.