Spermine. A regulator of mitochondrial calcium cycling.

Abstract

Steady-state free Ca2+ concentrations have been measured with a Ca2+ electrode using suspensions of isolated rat liver mitochondria or saponin-treated hepatocytes. Mitochondria, when incubated in the presence of Mg2+ and MgATP2-, maintain a steady-state pCa2+ (-log [Ca2+]) of approximately 6.1 (0.8 microM). Addition of spermine lowered this value to a pCa2… (More)

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