Fructokinase

spinqualitylabelsall models Fructokinase with ADP and Fructose bound in the active site 3lm9 Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Function Fructokinase (FRK) catalyzes the phosphorylation of fructose to fructose-1-phosphate using ATP as phosphate source in plants, bacteria and animals. In plants and bacteria FRK regulates starch synthesis. In animals it produces oxalate and its precursors. Fructokinase with ADP and fructose bound in the active site (3lm9). Water molecules shown as red spheres. Relevance Inhibitors of FRK C may block sugar-associated metabolic syndromes. Disease FRK deficiency in the liver causes the inherited metabolic disorder Fructosuria.

3D structures of fructokinase

Updated on 07-July-2025

3lm9 – FRK – Bacterioides thetaiotamicron
3ljs – XfFRK – Xylella fastidiosa
3hj6 – FRK – Halothermothrix orenii
3lki – XfFRK + ATP
3lm9 - BsFRK + ATP + fructose – Bacillus subtilis
3ohr - BsFRK + ADP
2v78, 2var – FRK – Sulfolobus solfataricus
3c8u – FRK – Silicibacter
5ey7 – VcFRK – Vibrio cholerae
5f11 – VcFRK + fructose
5f0z, 5ygg – VcFRK + fructose + ADP
5eyn – VcFRK + fructose + ADP + BeF3
7cf8, 7cfa – FRK – Mycobacterium marinum
4u7x – BaFRK – Brucella abortus
4wjm – BaFRK + AMPPNP

For Hepatic fructokinase see Ketohexokinase

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Michal Harel, Alexander Berchansky, Joel L. Sussman