Annotations: 5NC8

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
B	ANF_receptor	e5nc8B1	A: a/b three-layered sandwiches	X: TIM beta/alpha-barrel	H: P-loop domains-related	T: P-loop containing nucleoside triphosphate hydrolases	F: ANF_receptor	ECOD (v294.1)
A	Metallophos	e5nc8A1	A: a/b three-layered sandwiches	X: PriB N-terminal domain-like	H: HTH	T: SH3	F: Metallophos	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
B	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)
A	3.40.50.720	Alpha Beta	3-Layer(aba) Sandwich	Rossmann fold	NAD(P)-binding Rossmann-like Domain	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A, B	PF02254	TrkA-N domain (TrkA_N)	TrkA-N domain	This domain is found in a wide variety of proteins. These protein include potassium channels Swiss:P31069, phosphoesterases Swiss:Q59027, and various other transporters. This domain binds to NAD.	Domain

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A, B	Potassium efflux system protein	monoatomic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity transmembrane transporter activity binding nucleoside phosphate binding nucleotide binding heterocyclic compound binding small molecule binding antiporter activity active transmembrane transporter activity secondary active transmembrane transporter activity	localization transport monoatomic ion transport potassium ion transport monoatomic cation transport establishment of localization metal ion transport monoatomic cation transmembrane transport transmembrane transport proton transmembrane transport monoatomic ion transmembrane transport cellular process	cell periphery cellular anatomical structure plasma membrane membrane

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A, B	IPR036291	NAD(P)-binding domain superfamily	Homologous Superfamily
A, B	IPR006153	Cation/H+ exchanger, transmembrane domain	Domain
A, B	IPR003148	Regulator of K+ conductance, N-terminal lobe	Domain
A, B	IPR004771	K+/H+ exchanger	Domain
A, B	IPR038770	Sodium/solute symporter superfamily	Homologous Superfamily

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.