Description
General description
Research area: Cell Signaling
Glycerol kinase is encoded by the GK gene on chromosome Xp21.2. Glycerol kinase is predominantly active in the liver.
Application
Glycerokinase from Bacillus stearothermophilus has been used in steady-state kinetics studies.
Biochem/physiol Actions
Glycerol kinase catalyzes tge MgATP-dependent phosphorylation of glycerol to produce sn-glycerol-3-phosphate and is the rate limiting enzyme in the utilization of glycerol. It is also subject to feedback regulation by fructose-1,6-bisphosphate.Oxidized glycerol-3-phosphate results in dihydroxyacetone phosphate which enters either glycolysis or gluconeogenesis. Elevated glycerol is observed in glycerol kinase deficiency leading to pseudohypertriglyceridemia.
Physical form
Stabilized solution in Tris buffer, pH 7.3
Other Notes
One unit will convert 1.0 μmole of glycerol and ATP to L-α-glycerophosphate and ADP per min at pH 9.8 at 25 °C in a coupled system with PK/LDH.