The Enzyme Database

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EC 3.6.3.9     
Accepted name: Na+/K+-exchanging ATPase
Reaction: ATP + H2O + Na+in + K+out = ADP + phosphate + Na+out + K+in
Systematic name: ATP phosphohydrolase (Na+/K+-exchanging)
Comments: A P-type ATPase that undergoes covalent phosphorylation during the transport cycle. This is a plasma membrane enzyme, ubiquitous in animal cells, that catalyses the efflux of three Na+ and influx of two K+ per ATP hydrolysed. It is involved in generating the plasma membrane electrical potential.
Links to other databases: BRENDA, EXPASY, KEGG, MetaCyc, PDB
References:
1.  Skou, J.C. The influence of some cations on an adenosinetriphosphatase from peripheral nerve. Biochim. Biophys. Acta 23 (1957) 394–401. [PMID: 13412736]
2.  Post, R.L., Sen, A.K. and Rosenthal, A.S. A phosphorylated intermediate in adenosine triphosphate-dependent sodium and potassium transport across kidney membrane. J. Biol. Chem. 240 (1965) 1437–1445. [PMID: 14284759]
3.  Skou, J.C. The energy-coupled exchange of Na+ for K+ across the cell membrane. The Na+,K+ pump. FEBS Lett. 268 (1990) 314–324. [PMID: 2166689]
[EC 3.6.3.9 created 1984 as EC 3.6.1.37, transferred 2000 to EC 3.6.3.9, modified 2001]
 
 


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