Effect of glucose starvation on the nicotinamide adenine dinucleotide phosphate-dependent glutamate dehydrogenase of yeast

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Abstract
Yeast cells growing on mineral medium plus ammonia and glucose contained high levels of nicotinamide adenine dinucleotide phosphate-dependent glutamate dehydrogenase activity, as measured in crude extracts. After suspension of cells in fresh medium lacking glucose, there was a loss of the glutamate dehydrogenase activity. Loss of activity was inhibited by 2,4-dinitrophenol, sodium azide, iodoacetic acid, and cycloheximide. The enzyme activity was restored when glucose was added back to the medium, and this recovery was fully prevented in the presence of cycloheximide.