Search for a regulatory function of mitochondrial proteinases in yeast

Autor:	I. Viard, A.J.C. Stahl
Rok vydání:	1985
Předmět:	Proteinase Mitochondria Yeast Aerobiosis Anaerobiosis Transition (genetics) Biophysics Substrate (chemistry) Cell Biology Biology Biochemistry Yeast Membrane Structural Biology Mole Genetics Molecular Biology Psychological repression Function (biology) Derepression
Zdroj:	FEBS Letters. 180:117-121
ISSN:	0014-5793
DOI:	10.1016/0014-5793(85)80243-x
Popis:	Proteolytic activity in yeast mitochondrial membranes and soluble fractions was studied using a labeled substrate: [ 14 C]dimethylcasein. Optimal activity for the two fractions was at pH 6 in phosphate buffer at 37°C. Activity was partially inhibited by adding 3 mmol/1 ATP. Activity was enhanced rapidly in both fractions when yeast cells were grown aerobically on a derepression medium and transfered on a repression medium in anaerobiosis. Mitochondrial proteinase mediation in the mitochondrial breackdown observed during transition from aerobical derepression to anaerobical repression is discussed.
Databáze:	OpenAIRE
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