IUBMB Enzyme Nomenclature

EC 3.6.3.8

Accepted name: Ca2+-transporting ATPase

Reaction: ATP + H2O + Ca2+[side 1] = ADP + phosphate + Ca2+[side 2]

Other name(s): sarcoplasmic reticulum ATPase; sarco(endo)plasmic reticulum Ca2+-ATPase; calcium pump; Ca2+-pumping ATPase; plasma membrane Ca-ATPase

Systematic name: ATP phosphohydrolase (Ca2+-transporting)

Comments: A P-type ATPase that undergoes covalent phosphorylation during the transport cycle. This enzyme family comprises three types of Ca2+-transporting enzymes that are found in the plasma membrane, the sarcoplasmic reticulum and in yeast. The first and third transport one ion per ATP hydrolysed, whereas the second transports two ions. Ca2+ is transported from the cytosol [side 1] into the sarcoplasmic reticulum in muscle cells [side 2].

Links to other databases: BRENDA, EXPASY, KEGG, Metacyc, PDB, CAS registry number:

References:

1. Schatzmann, H.J. and Vicenzi, F.F. Calcium movements across the membrane of human red cells. J. Physiol. 201 (1969) 369-395. [PMID: 4238381]

2. Inesi, G., Watanabe, T., Coan, C. and Murphy, A. The mechanism of sarcoplasmic reticulum ATPase. Ann. N.Y. Acad. Sci. 402 (1982) 515-532. [PMID: 6301340]

3. Carafoli, E. The Ca2+ pump of the plasma membrane. J. Biol. Chem. 267 (1992) 2115-2118. [PMID: 1310307]

4. MacLennan, D.H., Rice, W.J. and Green, N.M. The mechanism of Ca2+ transport by sarco(endo)plasmic reticulum Ca2+-ATPases. J. Biol. Chem. 272 (1997) 28815-28818. [PMID: 9360942]

5. Toyoshima, C., Nakasako, M., Nomura, H. and Ogawa, H. Crystal structure of the calcium pump of sarcoplasmic reticulum at 2.6 Å resolution. Nature 405 (2000) 647-655. [PMID: 10864315]

[EC 3.6.3.8 created 1984 as EC 3.6.1.38, transferred 2000 to EC 3.6.3.8, modified 2001, modified 2011]


Return to EC 3.6.3 home page
Return to EC 3.6 home page
Return to EC 3 home page
Return to Enzymes home page
Return to IUBMB Biochemical Nomenclature home page