Annotations: 8D3X

Domain Annotation: ECOD Classification ECOD Database Homepage

Chains	Family Name	Domain Identifier	Architecture	Possible Homology	Homology	Topology	Family	Provenance Source (Version)
A [auth B]	PF00287	e8d3xB2	A: beta sandwiches	X: Immunoglobulin-like beta-sandwich	H: Immunoglobulin-related	T: Immunoglobulin/Fibronectin type III/E set domains/PapD-like	F: PF00287	ECOD (1.6)
A [auth B]	PF00287	e8d3xB1	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: PF00287	ECOD (1.6)
B [auth G]	PF02038	e8d3xG1	A: extended segments	X: FXYD family (From Topology)	H: FXYD family (From Topology)	T: FXYD family	F: PF02038	ECOD (1.6)
C [auth A]	PF00122	e8d3xA1	A: beta sandwiches	X: jelly-roll	H: Calcium ATPase, transduction domain A (From Topology)	T: Calcium ATPase, transduction domain A	F: PF00122	ECOD (1.6)
C [auth A]	PF00122,PF00689,PF00690	e8d3xA2	A: alpha bundles	X: Calcium ATPase transmembrane domain-related (From Homology)	H: Calcium ATPase transmembrane domain-related	T: Calcium ATPase transmembrane domain M	F: PF00122,PF00689,PF00690	ECOD (1.6)
C [auth A]	PF13246	e8d3xA4	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: PF13246	ECOD (1.6)
C [auth A]	PF00702	e8d3xA3	A: a/b three-layered sandwiches	X: HAD domain-like	H: HAD domain-related	T: HAD-like	F: PF00702	ECOD (1.6)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A [auth B]	PF00287	Sodium / potassium ATPase beta chain (Na_K-ATPase)	Sodium / potassium ATPase beta chain	-	Family
B [auth G]	PF02038	ATP1G1/PLM/MAT8 family (ATP1G1_PLM_MAT8)	ATP1G1/PLM/MAT8 family	-	Family
C [auth A]	PF00689	Cation transporting ATPase, C-terminus (Cation_ATPase_C)	Cation transporting ATPase, C-terminus	-	Family
C [auth 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
C [auth A]	PF00122	E1-E2 ATPase (E1-E2_ATPase)	E1-E2 ATPase	-	Family
C [auth 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 [auth B]	Sodium/potassium-transporting ATPase subunit beta-1	ATPase activator activity molecular function activator activity molecular function regulator activity ATPase regulator activity protein-containing complex binding binding MHC protein complex binding MHC class II protein complex binding 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-containing complex binding binding MHC protein complex binding MHC class II protein complex binding 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 ATPase binding protein binding enzyme binding protein heterodimerization activity protein dimerization activity kinase binding protein kinase binding	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 protein stability biological regulation 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 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 cellular metabolic 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 organic substance metabolic process biosynthetic process organic substance biosynthetic process regulation of macromolecule biosynthetic process metabolic process macromolecule metabolic process regulation of metabolic process sodium ion export across plasma membrane export from cell sodium ion transmembrane transport export across plasma membrane metal ion transport 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 establishment of protein localization protein transport into membrane raft nitrogen compound transport protein transport within lipid bilayer cellular component organization protein transport into plasma membrane raft establishment of localization in cell protein localization to plasma membrane raft cellular component organization or biogenesis protein localization to membrane raft membrane organization establishment of protein localization to membrane organic substance transport intracellular transport protein transport intracellular protein transport inorganic ion homeostasis intracellular calcium ion homeostasis homeostatic process calcium ion homeostasis cellular homeostasis chemical homeostasis intracellular monoatomic cation homeostasis monoatomic ion homeostasis intracellular chemical homeostasis monoatomic cation homeostasis intracellular monoatomic ion homeostasis regulation of localization positive regulation of cation transmembrane transport regulation of potassium ion transport positive regulation of biological process potassium ion transmembrane transport regulation of transmembrane transporter activity regulation of monoatomic ion transmembrane transport regulation of transporter activity positive regulation of molecular function positive regulation of monoatomic ion transport positive regulation of transmembrane transport positive regulation of monoatomic ion transmembrane transport regulation of metal ion transport positive regulation of cellular process regulation of potassium ion transmembrane transporter activity regulation of monoatomic ion transmembrane transporter activity regulation of transport regulation of monoatomic ion transport regulation of potassium ion transmembrane transport regulation of molecular function positive regulation of potassium ion transport regulation of transmembrane transport positive regulation of transport positive regulation of potassium ion transmembrane transport positive regulation of transporter activity positive regulation of ion transmembrane transporter activity potassium ion transport regulation of monoatomic cation transmembrane transport positive regulation of potassium ion transmembrane transporter activity regulation of calcium ion transmembrane transporter activity regulation of calcium ion transport positive regulation of calcium ion transport regulation of sodium ion transport regulation of sodium ion transmembrane transport calcium ion transport positive regulation of sodium ion transport positive regulation of calcium:sodium antiporter activity regulation of calcium:sodium antiporter activity positive regulation of sodium ion transmembrane transporter activity regulation of calcium ion transmembrane transport regulation of sodium ion transmembrane transporter activity positive regulation of calcium ion transmembrane transporter activity positive regulation of calcium ion transmembrane transport positive regulation of sodium ion transmembrane transport calcium ion transmembrane transport cell adhesion cellular response to stimulus heart process multicellular organismal process system process signaling regulation of heart contraction regulation of system process cardiac muscle contraction intracellular signal transduction cell communication striated muscle contraction circulatory system process intracellular signaling cassette regulation of multicellular organismal process signal transduction blood circulation regulation of cardiac muscle contraction by calcium ion signaling regulation of cardiac muscle contraction muscle contraction muscle system process regulation of muscle system process regulation of blood circulation regulation of striated muscle contraction calcium-mediated signaling regulation of muscle contraction heart contraction potassium ion homeostasis intracellular potassium ion homeostasis sodium ion homeostasis intracellular sodium ion homeostasis relaxation of cardiac muscle 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 organonitrogen compound metabolic process primary metabolic process nucleotide metabolic process purine-containing compound metabolic process organic cyclic compound metabolic process organophosphate metabolic process nucleoside triphosphate metabolic process purine ribonucleotide metabolic process establishment or maintenance of transmembrane electrochemical gradient cell communication by electrical coupling involved in cardiac conduction cell communication by electrical coupling cardiac conduction cell communication involved in cardiac conduction import into cell positive regulation of potassium ion import across plasma membrane potassium ion import across plasma membrane import across plasma membrane inorganic cation import across plasma membrane inorganic ion import across plasma membrane regulation of potassium ion import regulation of sodium ion export across plasma membrane positive regulation of sodium ion export across plasma membrane cardiac muscle cell membrane repolarization membrane repolarization during cardiac muscle cell action potential action potential cardiac muscle cell action potential membrane repolarization during action potential regulation of ATP-dependent activity positive regulation of ATP-dependent activity regulation of P-type sodium:potassium-exchanging transporter activity positive regulation of P-type sodium:potassium-exchanging transporter activity	cell periphery sarcolemma plasma membrane membrane T-tubule cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle cell periphery sarcolemma plasma membrane membrane T-tubule cellular anatomical entity extracellular exosome membrane-bounded organelle extracellular vesicle extracellular organelle extracellular region organelle extracellular space vesicle extracellular membrane-bounded organelle cell projection cilium 9+2 motile cilium sperm flagellum motile cilium plasma membrane bounded cell projection basal part of cell basal plasma membrane plasma membrane region basolateral plasma membrane cell-cell junction intercalated disc anchoring junction cell junction cell-cell contact zone organelle membrane apical part of cell apical 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
B [auth G]	FXYD domain-containing ion transport regulator 6	channel regulator activity ion channel regulator activity molecular function regulator activity sodium channel regulator activity transporter regulator activity	regulation of localization localization regulation of biological process regulation of transport transport regulation of monoatomic ion transport biological regulation monoatomic ion transport establishment of localization transmembrane transport monoatomic ion transmembrane transport cellular process	cell periphery postsynapse postsynaptic membrane synapse cell junction membrane plasma membrane plasma membrane region cellular anatomical entity synaptic membrane presynapse presynaptic membrane glutamatergic synapse
C [auth A]	Sodium/potassium-transporting ATPase subunit alpha-3	amide binding amyloid-beta binding binding peptide binding 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 amide binding amyloid-beta binding binding peptide binding 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 binding protein-folding chaperone binding steroid hormone binding organic cyclic compound binding steroid binding lipid binding hormone binding adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding ion binding purine nucleotide 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 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 heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation cell communication by electrical coupling involved in cardiac conduction cell communication by electrical coupling cell communication circulatory system process regulation of blood circulation cardiac conduction regulation of multicellular organismal process cell communication involved in cardiac conduction heart contraction blood circulation regulation of resting membrane potential regulation of biological quality regulation of membrane potential sodium ion export across plasma membrane export from cell sodium ion transmembrane transport export across plasma membrane metal ion transport sodium ion transport cellular response to stimulus response to organic substance response to stimulus response to lipid response to endogenous stimulus cellular response to organic cyclic compound cellular response to endogenous stimulus cellular response to chemical stimulus response to hormone response to chemical response to steroid hormone cellular response to lipid cellular response to organic substance cellular response to steroid hormone stimulus response to organic cyclic compound cellular response to hormone stimulus 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 cellular component organization plasma membrane bounded cell projection organization cell projection organization neuron projection maintenance neuron projection organization cellular component organization or biogenesis response to glycoside response to oxygen-containing compound cellular response to nitrogen compound response to organonitrogen compound response to nitrogen compound cellular response to amyloid-beta cellular response to oxygen-containing compound cellular response to organonitrogen compound response to amyloid-beta	membrane-bounded organelle organelle membrane cellular anatomical entity organelle membrane photoreceptor inner segment cell periphery plasma membrane photoreceptor inner segment membrane plasma membrane region intracellular organelle intracellular anatomical structure Golgi apparatus cytoplasm membrane-bounded organelle organelle membrane cellular anatomical entity organelle membrane photoreceptor inner segment cell periphery plasma membrane photoreceptor inner segment membrane plasma membrane region intracellular organelle intracellular anatomical structure Golgi apparatus cytoplasm intracellular membrane-bounded organelle endomembrane system synapse cell junction extracellular vesicle extracellular organelle extracellular region vesicle extracellular membrane-bounded organelle 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 somatodendritic compartment cell body neuronal cell body neuronal cell body membrane cell body membrane axon cell projection neuron projection plasma membrane bounded cell projection neuron to neuron synapse endoplasmic reticulum

InterPro: Protein Family Classification InterPro Database Homepage

Chains	Accession	Name	Type
A [auth B]	IPR000402	Sodium/potassium-transporting ATPase subunit beta	Family
A [auth B]	IPR038702	Sodium/potassium-transporting ATPase subunit beta superfamily	Homologous Superfamily
B [auth G]	IPR047297	Ion-transport regulator, FXYD motif	Conserved Site
B [auth G]	IPR000272	Ion-transport regulator, FXYD family	Family
C [auth A]	IPR005775	P-type ATPase subfamily IIC, subunit alpha	Family
C [auth A]	IPR004014	Cation-transporting P-type ATPase, N-terminal	Domain
C [auth A]	IPR001757	P-type ATPase	Family
C [auth A]	IPR044492	P-type ATPase, haloacid dehalogenase domain	Domain
C [auth A]	IPR006068	Cation-transporting P-type ATPase, C-terminal	Domain
C [auth A]	IPR018303	P-type ATPase, phosphorylation site	PTM
C [auth A]	IPR023298	P-type ATPase, transmembrane domain superfamily	Homologous Superfamily
C [auth A]	IPR023214	HAD superfamily	Homologous Superfamily
C [auth A]	IPR008250	P-type ATPase, A domain superfamily	Homologous Superfamily
C [auth A]	IPR036412	HAD-like superfamily	Homologous Superfamily
C [auth A]	IPR023299	P-type ATPase, cytoplasmic domain N	Homologous Superfamily

Pharos: Disease Associations Pharos Homepage Annotation

Chains	Drug Target	Associated Disease
A [auth B]	Pharos: P05026	acute myeloid leukemia essential hypertension interstitial cystitis lung adenocarcinoma medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm pilocytic astrocytoma astrocytic tumor Prescription Drug Abuse breast cancer substance abuse congestive heart failure vascular disease heart disease acute myeloid leukemia essential hypertension interstitial cystitis lung adenocarcinoma medulloblastoma osteosarcoma pancreatic intraductal papillary-mucinous neoplasm pilocytic astrocytoma astrocytic tumor Prescription Drug Abuse breast cancer substance abuse congestive heart failure vascular disease heart disease invasive ductal breast carcinoma lymphoplasmacytic lymphoma oligodendroglioma ovarian cancer pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia plasma cell myeloma atrial fibrillation primitive neuroectodermal tumor breast fibroadenoma substance-related disorder Fuchs' endothelial dystrophy hepatocellular carcinoma large cell medulloblastoma malignant glioma pancreatic intraductal papillary-mucinous carcinoma Parkinson disease atypical teratoid rhabdoid tumor psoriasis substance dependence drug dependence ductal breast carcinoma in situ glioblastoma
B [auth G]	Pharos: Q9H0Q3	acute myeloid leukemia Liver Cirrhosis, Experimental schizophrenia atypical teratoid rhabdoid tumor invasive ductal breast carcinoma lung adenocarcinoma malignant colon neoplasm pancreatic intraductal papillary-mucinous carcinoma Pick disease subependymal giant cell astrocytoma breast cancer large cell medulloblastoma lung cancer malignant mesothelioma pancreatic intraductal papillary-mucinous neoplasm acute myeloid leukemia Liver Cirrhosis, Experimental schizophrenia atypical teratoid rhabdoid tumor invasive ductal breast carcinoma lung adenocarcinoma malignant colon neoplasm pancreatic intraductal papillary-mucinous carcinoma Pick disease subependymal giant cell astrocytoma breast cancer large cell medulloblastoma lung cancer malignant mesothelioma pancreatic intraductal papillary-mucinous neoplasm psoriasis hydrolethalus syndrome lung carcinoma non-small cell lung carcinoma pancreatic intraductal papillary-mucinous neoplasm with low grade dysplasia
C [auth A]	Pharos: P13637	alternating hemiplegia of childhood dystonia 12 dystonic disorder congestive heart failure alternating hemiplegia of childhood 2 cerebellar ataxia-areflexia-pes cavus-optic atrophy-sensorineural hearing loss syndrome Parkinson disease Ventricular Dysfunction, Left pilocytic astrocytoma epilepsy generalized dystonia heart failure intellectual disability astrocytic tumor lung carcinoma alternating hemiplegia of childhood dystonia 12 dystonic disorder congestive heart failure alternating hemiplegia of childhood 2 cerebellar ataxia-areflexia-pes cavus-optic atrophy-sensorineural hearing loss syndrome Parkinson disease Ventricular Dysfunction, Left pilocytic astrocytoma epilepsy generalized dystonia heart failure intellectual disability astrocytic tumor lung carcinoma atypical teratoid rhabdoid tumor medulloblastoma autosomal recessive juvenile Parkinson disease 2 oligodendroglioma pituitary cancer subependymal giant cell astrocytoma glioblastoma large cell medulloblastoma malignant ependymoma osteoarthritis depressive disorder Pick disease hemiplegia atrial fibrillation malignant glioma bipolar disorder osteoarthritis susceptibility 1 parkinsonian disorder

Membrane Protein Annotation: OPM OPM Database Homepage

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

Membrane Protein Annotation: PDBTM PDBTM Database Homepage

Chains	External Link	Comment
A [auth B], B [auth G], C [auth A]	PDBTM	Annotated as membrane protein by PDBTM

Membrane Protein Annotation: mpstruc mpstruc Database Homepage

Chains	Resource Link	Group	Subgroup	Protein
A [auth B], B [auth G], C [auth A]	mpstruc	TRANSMEMBRANE PROTEINS: ALPHA-HELICAL	P-type ATPase	Na,K-ATPase, Na⁺-occluded 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 R01GM133198.