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  • Title: The effect of 1-cyclohexyl-3-(2-morpholinoethyl)carbodiimide on the rat liver microsomal glucose-6-phosphatase system.
    Author: Murataliev MB, Vulfson EN.
    Journal: Eur J Biochem; 1986 Oct 15; 160(2):401-5. PubMed ID: 3021457.
    Abstract:
    The effect of 1-cyclohexyl-3-(2-morpholinoethyl)carbodiimide (CMC) on the reactions catalyzed by the glucose-6-phosphatase system of rat liver microsomes was studied. Modification of the intact microsomes by CMC leads to the inhibition of the glucose-6-phosphatase, pyrophosphate:glucose and carbamoyl-phosphate : glucose phosphotransferase activities of the system. The activities are restored by the disruption of the microsomal permeability barrier. The mannose-6-phosphate, pyrophosphate, and carbamoyl-phosphate phosphohydrolase activities of the intact as well as the disrupted microsomes were not affected by CMC. It follows from the results obtained that CMC inactivates the microsomal glucose-6-phosphate translocase, the inactivation is a result of the modification of a single sulfhydryl or amino group of the translocase; pyrophosphate, carbamoyl phosphate and inorganic phosphate are transported across the microsomal membrane without participation of the glucose-6-phosphate translocase; pyrophosphate and carbamoyl phosphate may act as the phosphate donors in the glucose phosphorylation reactions in vivo.
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