1887

Abstract

A hexokinase (ATP:-hexose 6-phosphotransferase; EC 2.7.1.1) associated with catabolite repression was isolated and purified from the yeast The enzyme phosphorylated -fructose at a rate 15 times greater than that for -glucose. The values for -glucose and -fructose were 0·36 and 2·28 m, respectively. Neither xylose reductase nor xylitol dehydrogenase were subject to catabolite repression in mutants defective in this enzyme.

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1989-07-01
2024-04-19
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