4U4T | pdb_00004u4t

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	PTR2	e4u4tA1	A: a/b three-layered sandwiches	X: cradle loop barrel	H: RIFT-related	T: acid protease	F: PTR2	ECOD (v294.1)

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	1.20.1250.20	Mainly Alpha	Up-down Bundle	Growth Hormone	Chain: A	CATH (4.3.0)

Chains	Accession	Name	Description	Comments	Source
A	PF07690	Major Facilitator Superfamily (MFS_1)	Major Facilitator Superfamily	-	Family

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Nitrate/nitrite transporter NarK	antiporter activity active transmembrane transporter activity transporter activity transmembrane transporter activity solute:inorganic anion antiporter activity secondary active transmembrane transporter activity nitrite transmembrane transporter activity nitrate transmembrane transporter activity	nitrate assimilation nitrogen cycle metabolic process oxoacid metabolic process metabolic process cellular process small molecule metabolic process organic acid metabolic process nitrate metabolic process reactive nitrogen species metabolic process catabolic process nitrate catabolic process localization nitrogen compound transport transport nitrate assimilation nitrogen cycle metabolic process oxoacid metabolic process metabolic process cellular process small molecule metabolic process organic acid metabolic process nitrate metabolic process reactive nitrogen species metabolic process catabolic process nitrate catabolic process localization nitrogen compound transport transport establishment of localization nitrite transport inorganic anion transport transmembrane transport nitrate transmembrane transport nitrate import	cell periphery cellular anatomical structure plasma membrane membrane

Chains	Accession	Name	Type
A	IPR044772	Nitrate transporter	Family
A	IPR004737	Nitrate transporter NarK/NarU-like	Family
A	IPR011701	Major facilitator superfamily	Family
A	IPR036259	MFS transporter superfamily	Homologous Superfamily

Chains	External Link	Type	Class	Superfamily	Family
A	OPM	Transmembrane	Alpha-helical polytopic	Major Facilitator Superfamily (MFS)	Nitrate/nitrite porter

Chains	External Link	Comment
A	PDBTM	Annotated as membrane protein by PDBTM

Chains	External Link	Comment
A	MemProtMD	Annotated as membrane protein by MemProtMD

Chains	Resource Link	Group	Subgroup	Protein
A	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	Major Facilitator Superfamily (MFS) Transporters	NarK nitrate/nitrite exchanger, apo inward-open

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.

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