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Plant Physiology 58:135-139 (1976) © 1976 American Society of Plant Biologists Light Modulation of Glucose-6-Phosphate DehydrogenasePartial Characterization of the Light Inactivation System and its Effects on the Properties of the Chloroplastic and Cytoplasmic Forms of the Enzyme 1a Department of Biological Sciences, University of Illinois at Chicago Circle, Chicago, Illinois 60680
Light inactivation of glucose-6-phosphate dehydrogenase within the pea (Pisum sativum L.) leaf chloroplast has a narrow pH optimum between 7.2 and 7.4 and is NADP-sensitive. The pH optimum for dark activation is slightly lower. Inactivation apparently results in a simple decrease in maximal velocity of the chloroplastic and cytoplasmic forms of the enzyme with no concomitant change in pH optimum or Km (glucose 6-phosphate).
2 To whom reprint requests should be addressed. 1 This work was supported by National Science Foundation Grant BMS 75-02281. This article has been cited by other articles:
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