calcium pump

(redirected from calcium-transporting ATPase)
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calcium pump

[¦cal·se·əm ‚pəmp]
(cell and molecular biology)
An enzyme that uses the energy generated by the hydrolysis of adenosine triphosphate (ATP) to move calcium ions out of the cytoplasm or, in the case of muscle cells, from the cytoplasm to the sarcoplasmic reticulum. Also known as Ca2+ATPase.
References in periodicals archive ?
Myosin-3 (MYH3) and plasma membrane calcium-transporting ATPase (ATP2B), or PMCA, also showed interactions with CIB4 protein.
ATP284 plasma membrane calcium-transporting ATPase 4 (1028 aa) ATP2B1 plasma membrane calcium-transporting ATPase 1 (1220 aa) ATP2B2 plasma membrane calcium-transporting ATPase 2 (1198 aa) A7P2B3 plasma membrane calcium-transporting ATPase 3 (1206 aa) CNBP Cellular nucleic acid-binding protein; Single stranded DNA -binding protein, with specificity to the sterol regulato.
This work then led to the discovery of various plasma membrane channel mutations [sodium/potassium-transporting ATPase subunit alpha-1 (ATP1A1), plasma membrane calcium-transporting ATPase 3 (ATP2B3), and voltage-dependent calcium channel type L alpha 1D subunit (CACNA1D)] in other APAs.

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