ID:ATP4A_HUMAN DESCRIPTION: RecName: Full=Potassium-transporting ATPase alpha chain 1; EC=3.6.3.10; AltName: Full=Gastric H(+)/K(+) ATPase subunit alpha; AltName: Full=Proton pump; FUNCTION: Catalyzes the hydrolysis of ATP coupled with the exchange of H(+) and K(+) ions across the plasma membrane. Responsible for acid production in the stomach. CATALYTIC ACTIVITY: ATP + H(2)O + H(+)(In) + K(+)(Out) = ADP + phosphate + H(+)(Out) + K(+)(In). SUBUNIT: Composed of two subunits: alpha (catalytic) and beta. SUBCELLULAR LOCATION: Membrane; Multi-pass membrane protein. TISSUE SPECIFICITY: Found in gastric mucosa. SIMILARITY: Belongs to the cation transport ATPase (P-type) (TC 3.A.3) family. Type IIC subfamily.
The RNAfold program from the Vienna RNA Package is used to perform the secondary structure predictions and folding calculations. The estimated folding energy is in kcal/mol. The more negative the energy, the more secondary structure the RNA is likely to have.
SCOP Domains: 81653 - Calcium ATPase, transduction domain A 56784 - HAD-like 81660 - Metal cation-transporting ATPase, ATP-binding domain N 81665 - Calcium ATPase, transmembrane domain M
ModBase Predicted Comparative 3D Structure on P20648
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Orthologous Genes in Other Species
Orthologies between human, mouse, and rat are computed by taking the best BLASTP hit, and filtering out non-syntenic hits. For more distant species reciprocal-best BLASTP hits are used. Note that the absence of an ortholog in the table below may reflect incomplete annotations in the other species rather than a true absence of the orthologous gene.
Biological Process: GO:0006811 ion transport GO:0006813 potassium ion transport GO:0006814 sodium ion transport GO:0010248 establishment or maintenance of transmembrane electrochemical gradient GO:0015991 ATP hydrolysis coupled proton transport