Annotations: 7X24

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A	E1-E2_ATPase_N	e7x24A2	A: beta sandwiches	X: jelly-roll	H: Calcium ATPase, transduction domain A (From Topology)	T: Calcium ATPase, transduction domain A	F: E1-E2_ATPase_N	ECOD (1.6)
A	Cation_ATPase_C	e7x24A1	A: alpha bundles	X: Calcium ATPase transmembrane domain-related (From Homology)	H: Calcium ATPase transmembrane domain-related	T: Calcium ATPase transmembrane domain M	F: Cation_ATPase_C	ECOD (1.6)
A	Cation_ATPase	e7x24A3	A: a+b complex topology	X: Metal cation-transporting ATPase, ATP-binding domain (From Topology)	H: Metal cation-transporting ATPase, ATP-binding domain (From Topology)	T: Metal cation-transporting ATPase, ATP-binding domain	F: Cation_ATPase	ECOD (1.6)
A	Hydrolase_3_1	e7x24A4	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: HAD-like	F: Hydrolase_3_1	ECOD (1.6)
B	Na_K-ATPase_C	e7x24B2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: Na_K-ATPase_C	ECOD (1.6)
B	Na_K-ATPase_N	e7x24B1	A: extended segments	X: Transmembrane helix in sodium-potassium ATPase beta subunit (From Topology)	H: Transmembrane helix in sodium-potassium ATPase beta subunit (From Topology)	T: Transmembrane helix in sodium-potassium ATPase beta subunit	F: Na_K-ATPase_N	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF00689	Cation transporting ATPase, C-terminus (Cation_ATPase_C)	Cation transporting ATPase, C-terminus	-	Family
A	PF00702	haloacid dehalogenase-like hydrolase (Hydrolase)	haloacid dehalogenase-like hydrolase	This family is structurally different from the alpha/beta hydrolase family (Pfam:PF00561). This family includes L-2-haloacid dehalogenase, epoxide hydrolases and phosphatases. The structure of the family consists of two domains. One is an inserted fo ...	This family is structurally different from the alpha/beta hydrolase family (Pfam:PF00561). This family includes L-2-haloacid dehalogenase, epoxide hydrolases and phosphatases. The structure of the family consists of two domains. One is an inserted four helix bundle, which is the least well conserved region of the alignment, between residues 16 and 96 of Swiss:P24069. The rest of the fold is composed of the core alpha/beta domain [1]. Those members with the characteristic DxD triad at the N-terminus are probably phosphatidylglycerolphosphate (PGP) phosphatases involved in cardiolipin biosynthesis in the mitochondria [2].	Domain
A	PF00690	Cation transporter/ATPase, N-terminus (Cation_ATPase_N)	Cation transporter/ATPase, N-terminus	Members of this families are involved in Na+/K+, H+/K+, Ca++ and Mg++ transport.	Domain
A	PF00122	E1-E2 ATPase (E1-E2_ATPase)	E1-E2 ATPase	-	Family
A	PF13246	Cation transport ATPase (P-type) (Cation_ATPase)	Cation transport ATPase (P-type)	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Potassium-transporting ATPase alpha chain 2	monoatomic cation transmembrane transporter activity P-type transmembrane transporter activity P-type sodium transporter activity potassium ion transmembrane transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity P-type sodium:potassium-exchanging transporter activity ATPase-coupled monoatomic cation transmembrane transporter activity sodium ion transmembrane transporter activity ATP-dependent activity P-type potassium transmembrane transporter activity P-type ion transporter activity active monoatomic ion transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity monoatomic cation transmembrane transporter activity P-type transmembrane transporter activity P-type sodium transporter activity potassium ion transmembrane transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity P-type sodium:potassium-exchanging transporter activity ATPase-coupled monoatomic cation transmembrane transporter activity sodium ion transmembrane transporter activity ATP-dependent activity P-type potassium transmembrane transporter activity P-type ion transporter activity active monoatomic ion transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide binding organic cyclic compound binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide binding small molecule binding pyrophosphatase activity ATP hydrolysis activity ribonucleoside triphosphate phosphatase activity hydrolase activity, acting on acid anhydrides, in phosphorus-containing anhydrides hydrolase activity hydrolase activity, acting on acid anhydrides catalytic activity proton transmembrane transporter activity P-type potassium:proton transporter activity P-type proton-exporting transporter activity cation binding metal ion binding	potassium ion homeostasis inorganic ion homeostasis homeostatic process cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis intracellular potassium ion homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis sodium ion homeostasis intracellular sodium ion homeostasis transport potassium ion homeostasis inorganic ion homeostasis homeostatic process cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis intracellular potassium ion homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis sodium ion homeostasis intracellular sodium ion homeostasis transport proton transmembrane transport monoatomic ion transmembrane transport inorganic ion transmembrane transport establishment of localization inorganic cation transmembrane transport transmembrane transport monoatomic cation transmembrane transport localization monoatomic ion transport cellular process monoatomic cation transport regulation of pH biological regulation sodium ion export across plasma membrane export from cell sodium ion transmembrane transport export across plasma membrane metal ion transport sodium ion transport response to stimulus response to metal ion response to chemical import into cell import across plasma membrane potassium ion transmembrane transport inorganic cation import across plasma membrane inorganic ion import across plasma membrane potassium ion transport potassium ion import across plasma membrane response to organic cyclic compound	cell periphery apical part of cell membrane plasma membrane plasma membrane region cellular anatomical entity apical plasma membrane basal part of cell basal plasma membrane basolateral plasma membrane
B	Sodium/potassium-transporting ATPase subunit beta-1	ATPase activator activity molecular function activator activity molecular function regulator activity ATPase regulator activity protein heterodimerization activity protein binding binding protein dimerization activity monoatomic cation transmembrane transporter activity P-type transmembrane transporter activity P-type sodium transporter activity potassium ion transmembrane transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity ATPase activator activity molecular function activator activity molecular function regulator activity ATPase regulator activity protein heterodimerization activity protein binding binding protein dimerization activity monoatomic cation transmembrane transporter activity P-type transmembrane transporter activity P-type sodium transporter activity potassium ion transmembrane transporter activity primary active transmembrane transporter activity ATPase-coupled transmembrane transporter activity P-type sodium:potassium-exchanging transporter activity ATPase-coupled monoatomic cation transmembrane transporter activity sodium ion transmembrane transporter activity ATP-dependent activity P-type potassium transmembrane transporter activity P-type ion transporter activity active monoatomic ion transmembrane transporter activity active transmembrane transporter activity inorganic molecular entity transmembrane transporter activity inorganic cation transmembrane transporter activity monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity protein-macromolecule adaptor activity molecular adaptor activity kinase binding enzyme binding protein kinase binding ATPase binding	potassium ion homeostasis inorganic ion homeostasis homeostatic process cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis intracellular potassium ion homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis sodium ion homeostasis intracellular sodium ion homeostasis multicellular organismal process potassium ion homeostasis inorganic ion homeostasis homeostatic process cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis intracellular potassium ion homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis sodium ion homeostasis intracellular sodium ion homeostasis multicellular organismal process system process relaxation of cardiac muscle muscle system process relaxation of muscle ribose phosphate metabolic process ATP metabolic process carbohydrate derivative metabolic process nucleobase-containing compound metabolic process purine nucleotide metabolic process ribonucleotide metabolic process nucleobase-containing small molecule metabolic process purine ribonucleoside triphosphate metabolic process phosphate-containing compound metabolic process small molecule metabolic process phosphorus metabolic process ribonucleoside triphosphate metabolic process nucleoside phosphate metabolic process purine nucleoside triphosphate metabolic process cellular metabolic process primary metabolic process nucleotide metabolic process purine-containing compound metabolic process organophosphate metabolic process metabolic process cellular process nucleoside triphosphate metabolic process purine ribonucleotide metabolic process regulation of protein stability biological regulation regulation of biological quality protein stabilization membrane repolarization regulation of membrane potential regulation of biosynthetic process regulation of biological process regulation of cellular process cellular biosynthetic process regulation of cellular metabolic process regulation of macromolecule metabolic process gene expression macromolecule biosynthetic process regulation of cellular biosynthetic process regulation of gene expression biosynthetic process regulation of macromolecule biosynthetic process macromolecule metabolic process regulation of metabolic process import into cell regulation of localization positive regulation of cation transmembrane transport positive regulation of potassium ion import across plasma membrane regulation of potassium ion transport transport monoatomic ion transmembrane transport positive regulation of biological process potassium ion transmembrane transport regulation of monoatomic ion transmembrane transport metal ion transport monoatomic cation transmembrane transport localization positive regulation of monoatomic ion transport positive regulation of transmembrane transport monoatomic ion transport positive regulation of monoatomic ion transmembrane transport potassium ion import across plasma membrane monoatomic cation transport regulation of metal ion transport positive regulation of cellular process regulation of transport import across plasma membrane regulation of monoatomic ion transport inorganic ion transmembrane transport regulation of potassium ion transmembrane transport establishment of localization inorganic cation import across plasma membrane inorganic cation transmembrane transport transmembrane transport positive regulation of potassium ion transport regulation of transmembrane transport positive regulation of transport positive regulation of potassium ion transmembrane transport inorganic ion import across plasma membrane potassium ion transport regulation of monoatomic cation transmembrane transport regulation of potassium ion import sodium ion export across plasma membrane export from cell sodium ion transmembrane transport export across plasma membrane sodium ion transport biological process involved in interspecies interaction between organisms response to stimulus immune response response to other organism defense response defense response to symbiont response to external stimulus response to biotic stimulus immune system process defense response to other organism response to stress innate immune response response to external biotic stimulus protein localization protein localization to cell periphery cellular localization protein localization to plasma membrane cellular macromolecule localization macromolecule localization localization within membrane protein localization to membrane intracellular calcium ion homeostasis calcium ion homeostasis regulation of sodium ion transport regulation of sodium ion transmembrane transport positive regulation of sodium ion transport positive regulation of sodium ion transmembrane transport regulation of sodium ion export across plasma membrane positive regulation of sodium ion export across plasma membrane cell adhesion response to decreased oxygen levels response to hypoxia response to oxygen levels response to abiotic stimulus heart process circulatory system process cardiac muscle contraction heart contraction muscle contraction blood circulation striated muscle contraction regulation of calcium ion transport calcium ion transport regulation of calcium ion transmembrane transport calcium ion transmembrane transport developmental process multicellular organism development embryo development ending in birth or egg hatching chordate embryonic development anatomical structure development embryo development in utero embryonic development blastocyst development cellular response to stimulus signaling regulation of heart contraction regulation of system process intracellular signal transduction cell communication intracellular signaling cassette regulation of multicellular organismal process signal transduction regulation of cardiac muscle contraction by calcium ion signaling regulation of cardiac muscle contraction regulation of muscle system process regulation of blood circulation regulation of striated muscle contraction calcium-mediated signaling regulation of muscle contraction	cell periphery sarcolemma plasma membrane membrane T-tubule cellular anatomical entity membrane-bounded organelle organelle organelle membrane apical part of cell plasma membrane region apical plasma membrane membrane microdomain membrane raft cell periphery sarcolemma plasma membrane membrane T-tubule cellular anatomical entity membrane-bounded organelle organelle organelle membrane apical part of cell plasma membrane region apical plasma membrane membrane microdomain membrane raft plasma membrane raft caveola cell projection cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection basal part of cell basal plasma membrane basolateral plasma membrane ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane protein complex sodium:potassium-exchanging ATPase complex transporter complex cation-transporting ATPase complex transmembrane transporter complex lateral plasma membrane cell-cell junction intercalated disc anchoring junction cell junction cell-cell contact zone

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A	IPR005775	P-type ATPase subfamily IIC, subunit alpha	Family
A	IPR004014	Cation-transporting P-type ATPase, N-terminal	Domain
A	IPR001757	P-type ATPase	Family
A	IPR044492	P-type ATPase, haloacid dehalogenase domain	Domain
A	IPR006068	Cation-transporting P-type ATPase, C-terminal	Domain
A	IPR018303	P-type ATPase, phosphorylation site	PTM
A	IPR023298	P-type ATPase, transmembrane domain superfamily	Homologous Superfamily
A	IPR050510	Cation transport ATPase (P-type)	Family
A	IPR023214	HAD superfamily	Homologous Superfamily
A	IPR008250	P-type ATPase, A domain superfamily	Homologous Superfamily
A	IPR036412	HAD-like superfamily	Homologous Superfamily
A	IPR023299	P-type ATPase, cytoplasmic domain N	Homologous Superfamily
B	IPR000402	Sodium/potassium-transporting ATPase subunit beta	Family
B	IPR038702	Sodium/potassium-transporting ATPase subunit beta superfamily	Homologous Superfamily

Membrane Protein Annotation: OPM OPM Database Homepage

Chains	External Link	Type	Class	Superfamily	Family
A, B	OPM	Transmembrane	Alpha-helical polytopic	P-type ATPase (P-ATPase)	P-ATPase

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

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

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A, B	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	P-type ATPase	non-gastric (ng) H⁺,K⁺-ATPase: alpha2 in K⁺E2-AlF state

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.