sarcoplasmic reticulum

[ sahr-kuh-plaz-mik ]

noun

, Cell Biology.

1. a system of membrane-bound tubules that surrounds muscle fibrils, releasing calcium ions during contraction and absorbing them during relaxation.

Word History and Origins

Origin of sarcoplasmic reticulum¹

First recorded in 1950–55; sarco- + plasm(a) + -ic

Example Sentences

Ca2+ versus Mg2+ coordination at the nucleotide-binding site of the sarcoplasmic reticulum Ca2+-ATPase.

From Nature

Crystal structure of D351A and P312A mutant forms of the mammalian sarcoplasmic reticulum Ca2+ -ATPase reveals key events in phosphorylation and Ca2+ release.

From Nature

Wakabayashi, S. & Shigekawa, M. Role of divalent cation bound to phosphoenzyme intermediate of sarcoplasmic reticulum ATPase.

From Nature

Sørensen, T. L., Dupont, Y., Vilsen, B. & Andersen, J. P. Fast kinetic analysis of conformational changes in mutants of the Ca2+-ATPase of sarcoplasmic reticulum.

From Nature

Mahaney, J. E., Thomas, D. D. & Froehlich, J. P. The time-dependent distribution of phosphorylated intermediates in native sarcoplasmic reticulum Ca2+-ATPase from skeletal muscle is not compatible with a linear kinetic model.

From Nature