fructokinase

Fructokinase is an enzyme crucial for metabolizing fructose, a simple sugar found in fruits and table sugar. In a healthy body, fructokinase converts fructose into fructose-1-phosphate. However, a deficiency in this enzyme leads to a condition called fructosuria, where fructose levels rise in the blood and urine. This is a hereditary disorder, but it does not cause other clinical issues and is compatible with a normal life expectancy.1

Phosphofructokinase is another important enzyme involved in regulating fermentation and glycolysis, the process of breaking down glucose. It catalyzes the formation of fructose-1,6-diphosphate and ADP from fructose-6-phosphate and ATP, and its activity is influenced by the cell's ATP/ADP ratio. Both fructokinase and phosphofructokinase play vital roles in carbohydrate metabolism.234