Kellermayer R, et al. (2004) The intracellular dissipation of cytosolic calcium following glucose re-addition to carbohydrate depleted Saccharomyces cerevisiae. FEBS Lett 571(1-3):55-60
Abstract: Glucose re-addition to carbohydrate starved yeast cells leads to a transient elevation of eytosolic calcium (TECC). Concomitantly, a cytosolic proton extrusion occurs through the activation of the vacuolar H(+)-ATPase and the plasma membrane H(+)-ATPases. This study addressed the dissipation of the TECC through intracellular compartmentalization and the possible affects of the H(+)-ATPases on this process. Both the vacuole and the Golgi-ER apparatus were found to play important roles in distributing calcium to internal stores. Additionally, the inhibition of cytosolic proton extrusion augmented cytosolic calcium responses. A model where pH dependent cytosolic calcium buffering plays an important role in the dissipation of the TECC in Saccharomyces cerevisiae is proposed.
|Status: Published||Type: Journal Article | Research Support, Non-U.S. Gov't||PubMed ID: 15280017|
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