an enzyme catalyzing the transfer of a phosphate residue from ATP to a hexose, as in the formation of glucose-6-phosphate from glucose.

An enzyme that catalyzes the transfer of a high-energy phosphate group of a donor to D-glucose, producing D-glucose-6-phosphate.

An enzyme which catalyzes the formation of glucose 6-phosphate from glucose as part of glycolysis. It is an isozyme of glucokinase.

Hexokinase (HK) is an enzyme present in muscle and other tissues. It catalyzes the phosphorylation (adding a phosphor group) of glucose and other hexoses to form a hexose 6-phosphate.

A hexokinase is an enzyme that phosphorylates a six-carbon sugar, a hexose, to a hexose phosphate. In most tissues and organisms, glucose is the most important substrate of hexokinases, and glucose-6-phosphate the most important product. Hexokinases have been found in every organism checked, ranging from bacteria, yeast, and plants to humans and other vertebrates.