Purification and properties of adenosine 5'-triphospae-D-glucose 6-phosphotransferase from rat liver.
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ABSTRACT: 1. An 870-fold purification of glucokinase from rat liver is described which involves ammonium sulphate fractionation and the use of DEAE-Sephadex, DEAE-cellulose and polyacrylamide columns. 2. The preparation is free of any interfering enzymes and has a specific activity of 8mumoles/min./mg. of protein. 3. Glucokinase catalyses the phosphorylation of glucose, mannose and 2-deoxyglucose. 4. The enzyme is inhibited by high concentrations of glucose 6-phosphate only; ADP is an inhibitor whose effect depends on the Mg(2+) concentration. 5. The properties of glucokinase are compared briefly with those of other phosphotransferases.
SUBMITTER: Parry MJ
PROVIDER: S-EPMC1264993 | biostudies-other | 1966 May
REPOSITORIES: biostudies-other
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