Glycerone kinase () is an enzyme that catalyzes the chemical reaction
The enzyme characterised from liver converts dihydroxyacetone (glycerone) to dihydroxyacetone phosphate by transferring a phosphate group from the cofactor, adenosine triphosphate (ATP), which is converted to adenosine diphosphate (ADP).
This enzyme is a transferase, specifically one transferring phosphorus-containing groups (phosphotransferases) with an alcohol group as acceptor. The systematic name of this enzyme class is ATP:glycerone phosphotransferase. Other names in common use include dihydroxyacetone kinase, acetol kinase, and acetol kinase (phosphorylating).
Structural studies As of late 2007, 6 structures have been solved for this class of enzymes, with PDB accession codes , , , , , and .
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