Reference: Dickinson JR, et al. (1985) Abnormal amino acid metabolism in mutants of Saccharomyces cerevisiae affected in the initiation of sporulation. Eur J Biochem 148(2):405-6

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Abstract


Amino acid metabolism was examined during sporulation in a wild-type strain of Saccharomyces cerevisiae and in a mutant homozygous for the spd1 mutation (derepression of sporulation). In the wild-type initiation of sporulation involves a rise in intracellular glutamate. In the derepressed mutant there was no further increase of intracellular glutamate: glutamate was already present at a greater concentration than in the wild-type. These elevated glutamate levels are apparently due to reduction in the activity of 2-oxoglutarate dehydrogenase. One consequence of the elevated glutamate levels in diploids homozygous for the spd1 mutation is the production of considerable amounts of glycyl-L-proline, glutathione and saccharopine.

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Journal Article | Research Support, Non-U.S. Gov't
Authors
Dickinson JR, Ambler RP, Dawes IW
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