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Reference: Serrano R (1983) In vivo glucose activation of the yeast plasma membrane ATPase. FEBS Lett 156(1):11-4

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Abstract

The addition of glucose to yeast cells activates proton efflux mediated by the plasma membrane ATPase. Accordingly, the ATPase activity of purified plasma membranes is increased up to 10-fold. The activated ATPase has a more alkaline pH optimum, better affinity for ATP and greater sensitivity to vanadate than the non-activated enzyme. All these changes are reversed by washing the cells free of glucose. This suggests two states of the ATPase which are interconverted by a covalent modification. As glucose does not affect the phosphorylation of plasma membrane polypeptides, other type of covalent modification may be involved.

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Journal Article | Research Support, Non-U.S. Gov't
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Serrano R
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