Nitrogen Metabolism in Saccharomyces cerevisiae

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 Proline Degradat ion J. Arginine Degradat ion K. Induction of the Arginine Catabol ic E n z y m e s L. Other Poss ib le M o d e s of Regulat ing Arginine Catabol i sm M. Utilization of a -aminoadipate and the Posit ive S e l e c t i o n of Iys2 and /y s5 Mutants 2 . N i t r o g e n M e t a b o l i s m in a n A d v e r s e E x t e r n a l E n v i r o n m e n t A. Amino Acid Metabol ism during Starvation B. Vacuolar and Cellular H o m e o s t a s i s C. Vacuolar Cons t i tuents D. Vacuo le Structure in Different S t a g e s of the Cell C y c l e E. Mobilization of S e q u e s t e r e d Metabol i tes F. Starvat ion-mediated Protein Degradat ion G. Yeast Pro te inases H. G e n e t i c s of Intracellular Proteo lys i s I. Effects of Nitrogen Metabol ism on Sporulat ion 3. I n t e g r a t i o n of N i t r o g e n M e t a b o l i s m A. Short -range Modulation: Induction and Compartmentat ion B. Sequent ia l Induction—A Means of Achieving Sensi t ive , Buffered Metabol ic Control C. Long-range Modulation: Nitrogen Catabol i te Repress ion