1Q3I | pdb_00001q3i

Crystal Structure of Na,K-ATPase N-domain

External Resource: Annotation

Domain Annotation: SCOP/SCOPe Classification
Domain Annotation: SCOP2 Classification
Domain Annotation: ECOD Classification
Domain Annotation: CATH
Protein Family Annotation
Gene Ontology: Gene Product Annotation
InterPro: Protein Family Classification

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

Chains	Domain Info	Class	Fold	Superfamily	Family	Domain	Species	Provenance Source (Version)
A	d1q3ia1	Alpha and beta proteins (a+b)	Metal cation-transporting ATPase, ATP-binding domain N	Metal cation-transporting ATPase, ATP-binding domain N	Metal cation-transporting ATPase, ATP-binding domain N	Sodium/potassium-transporting ATPase alpha chain	pig (Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)
A	d1q3ia2	Artifacts	Tags	Tags	Tags	C-terminal Tags	pig (Sus scrofa ) [TaxId: 9823 ],	SCOPe (2.08)

Domain Annotation: SCOP2 Classification SCOP2 Database Homepage

Chains	Type	Family Name	Domain Identifier	Family Identifier	Provenance Source (Version)
A	SCOP2 Family	Metal cation-transporting ATPase, ATP-binding domain N	8026105	4002232	SCOP2 (2022-06-29)
A	SCOP2 Superfamily	Metal cation-transporting ATPase, ATP-binding domain N	8038484	3000981	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)
A	Cation_ATPase	e1q3iA1	A: few secondary structure elements	X: Metal cation-transporting ATPase, ATP-binding domain	H: Metal cation-transporting ATPase, ATP-binding domain	T: Metal cation-transporting ATPase, ATP-binding domain	F: Cation_ATPase	ECOD (v294.1)

Domain Annotation: CATH CATH Database Homepage

Chain	Domain	Class	Architecture	Topology	Homology	Provenance Source (Version)
A	3.40.1110.10	Alpha Beta	3-Layer(aba) Sandwich	Calcium-transporting ATPase, cytoplasmic domain N	Calcium-transporting ATPase, cytoplasmic domain N	CATH (4.3.0)

Protein Family Annotation Pfam Database Homepage

Chains	Accession	Name	Description	Comments	Source
A	PF13246	P-type ATPase, cytoplasmic domain N (Cation_ATPase)	P-type ATPase, cytoplasmic domain N	-	Family

Gene Ontology: Gene Product Annotation Gene Ontology Database Homepage

Chains	Polymer	Molecular Function	Biological Process	Cellular Component
A	Na,K-ATPase	cation binding ion binding binding potassium ion binding alkali metal ion binding metal ion binding small molecule 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 cation binding ion binding binding potassium ion binding alkali metal ion binding metal ion binding small molecule 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 monoatomic ion transmembrane transporter activity transporter activity metal ion transmembrane transporter activity transmembrane transporter activity adenyl ribonucleotide binding nucleotide binding purine ribonucleotide binding purine ribonucleoside triphosphate binding nucleoside phosphate binding purine nucleotide binding anion binding adenyl nucleotide binding ATP binding heterocyclic compound binding carbohydrate derivative binding ribonucleotide 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	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 monoatomic cation transmembrane 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 monoatomic cation transmembrane transport transmembrane transport localization transport proton transmembrane transport monoatomic ion transmembrane transport monoatomic ion transport cellular process monoatomic cation transport establishment of localization heart process multicellular organismal process system process regulation of biological process regulation of heart contraction regulation of system process biological regulation circulatory system process regulation of blood circulation regulation of multicellular organismal process heart contraction blood circulation sodium ion export across plasma membrane sodium ion transmembrane transport export from cell export across plasma membrane metal ion transport sodium ion transport cellular response to stimulus response to lipid response to stimulus response to endogenous stimulus 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 steroid hormone stimulus cellular response to hormone stimulus cell communication muscle contraction regulation of muscle system process muscle system process striated muscle contraction regulation of striated muscle contraction regulation of muscle contraction 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	cell periphery cellular anatomical structure sarcolemma plasma membrane membrane T-tubule intracellular anatomical structure cytoplasm ATPase dependent transmembrane transport complex protein-containing complex plasma membrane protein complex membrane protein complex sodium:potassium-exchanging ATPase complex transporter complex cell periphery cellular anatomical structure sarcolemma plasma membrane membrane T-tubule intracellular anatomical structure cytoplasm 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 cell projection

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	IPR059000	P-type ATPase, A domain	Domain
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

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.