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A calcium-binding protein found in the interior of sarcoplasmic reticulum of muscles. It releases calcium ions at calcium channels.
[calcium + sequester + -in]
calsequestrin/cal·se·ques·trin/ (-sĕ-kwes´trin) a calcium-binding protein rich in carboxylate side chains, occurring on the inner membrane surface of the sarcoplasmic reticulum.
A protein in the sarcoplasmic reticulum of muscle cells that regulates the concentration of calcium ions.
a calcium ion binding protein effecting a sequestration of calcium ions within the smooth endoplasmic reticulum.