Superficial buffer barrier function of smooth muscle sarcoplasmic reticulum.

Abstract

In smooth muscle the superficial sarcoplasmic reticulum accumulates a portion of the Ca2+ that enters cells through the plasmalemma and thus functions as a buffer barrier to Ca2+ entry into the myoplasm (superficial buffer barrier or SBB). In this review Cornelis van Breemen, Qian Chen and Ismail Laher summarize experimental support for the SBB, and discuss… (More)

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