Catalytic activity:ATP + D-hexose = ADP + D-hexose 6-phosphate. ,Domain:The N- and C-terminal halves of this hexokinase show extensive sequence similarity to each other. The catalytic activity is associated with the C-terminus while regulatory function is associated with the N-terminus. ,enzyme regulation:Hexokinase is an allosteric enzyme inhibited by its product Glc-6-P. ,miscellaneous:In vertebrates there are four major glucose-phosphorylating isoenzymes , designated hexokinase I , II , III and IV (glucokinase) . ,online information:Hexokinase entry ,pathway:Carbohydrate metabolism; hexose metabolism. ,polymorphism:Although found in NIDDM patients , genetic variations of HK2 do not contribute to the disease. ,similarity:Belongs to the hexokinase family. ,subcellular location:Its hydrophobic N-terminal sequence may be involved in membrane binding. ,subunit:Monomer. ,tissue specificity:Predominant hexokinase isozyme expressed in insulin-responsive tissues such as skeletal muscle. ,
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