Hexokinases

Part of speech: noun

Definitions

1. Proteins that catalyze the phosphorylation of glucose to glucose-6-phosphate as the first step in glycolysis ; enzymes that initiate carbohydrate metabolism by converting glucose into its phosphorylated form ; biological molecules facilitating the transformation of glucose to glucose-6-phosphate thereby enabling energy extraction from sugars
2. Enzymatic agents responsible for transferring a phosphate group to glucose molecules to produce glucose-6-phosphate in cellular respiration ; biochemical catalysts that start the breakdown of glucose by adding a phosphate group ; metabolic proteins that engage in the phosphorylation of glucose to regulate its usage in energy production pathways
3. Cellular enzymes that attach a phosphate residue to glucose, creating glucose-6-phosphate and regulating glucose entry into metabolism ; proteins that perform the initial phosphorylation required for glucose to be processed in glycolysis ; catalysts involved in carbohydrate metabolism responsible for initiating glucose modification to drive energy generation processes

Etymology: "Hexokinases" is the plural of "hexokinase," an enzyme that catalyses the transfer of a phosphate group to a six-carbon sugar, most often glucose. The name is a scientific coinage built from Greek roots: "hex-" meaning six, referring to the six carbon atoms of a hexose sugar, and "kinase," the standard suffix for enzymes that move phosphate groups, itself formed from the Greek "kinein," to move. Because the word describes a family of enzymes rather than a single one, the plural is the form chemists use most often, since organisms contain several hexokinase isoforms with differing roles in metabolism.

Synonyms: HK enzyme, glucose kinase