Nitrogen Repression of the Allantoin Degradative Enzymes in Saccharomyces cerevisiae
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چکیده
منابع مشابه
Nitrogen repression of the allantoin degradative enzymes in Saccharomyces cerevisiae.
Saccharomyces cerevisiae can utilize allantoin as a sole nitrogen source by degrading it to ammonia, "CO(2)," and glyoxylate. We have previously shown that synthesis of the allantoin degradative enzymes is contingent upon the presence of allophanate, the last intermediate in the pathway. The reported repression of arginase by ammonia prompted us to ascertain whether or not the allantoin degrada...
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Saccharomyces cerevisiae can degrade allantoin in five steps to glyoxylate, ammonia, and "CO(2)." We previously demonstrated that synthesis of the urea carboxylase-allophanate hydrolase multienzyme complex is contingent upon the presence of allophanic acid, the product of the urea carboxylase reaction. Since these enzymes catalyze the last two reactions of allantoin degradation, experiments wer...
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The biosynthesis of asparaginase II in Saccharomyces cerevisiae is subject to nitrogen catabolite repression. In the present study we examined the physiological effects of glutamate auxotrophy on cellular metabolism and on the nitrogen catabolite repression of asparaginase II. Glutamate auxotrophic cells, incubated without a glutamate supplement, had a diminished internal pool of alpha-ketoglut...
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1. A S u m m a r y of t h e M a j o r C a t a b o l i c S y s t e m s A. Allantoin Degradat ion B. G e n e t i c s of Allantoin Degradat ion C. Induction of the Al lantoin-degrading E n z y m e s D. Asparag ine Degradat ion E. Regulat ion of Asparag ine Degradat ion F. A m m o n i a and Glutamate Interconversion G. Mutants with Altered GDH Activities H. Proline Degradat ion I. Control of Prolin...
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ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1974
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.118.3.821-829.1974