3q92
From Proteopedia
X-ray Structure of ketohexokinase in complex with a pyrimidopyrimidine analog 1
Structural highlights
Disease[KHK_HUMAN] Defects in KHK are the cause of fructosuria (FRUCT) [MIM:229800]. Benign defect of intermediary metabolism.[1] [2] Publication Abstract from PubMedAttenuation of fructose metabolism by the inhibition of ketohexokinase (KHK; fructokinase) should reduce body weight, free fatty acids, and triglycerides, thereby offering a novel approach to treat diabetes and obesity in response to modern diets. We have identified potent, selective inhibitors of human hepatic KHK within a series of pyrimidinopyrimidines (1). For example, 8, 38, and 47 exhibited KHK IC50 values of 12, 7, and 8 nM, respectively, and also showed potent cellular KHK inhibition (IC50 < 500 nM), which relates to their intrinsic potency vs KHK and their ability to penetrate cells. X-ray cocrystal structures of KHK complexes of 3, 8, and 47 revealed the important interactions within the enzyme's adenosine 5'-triphosphate (ATP)-binding pocket. Inhibitors of Ketohexokinase: Discovery of Pyrimidinopyrimidines with Specific Substitution that Complements the ATP-Binding Site.,Maryanoff BE, O'Neill JC, McComsey DF, Yabut SC, Luci DK, Jordan AD Jr, Masucci JA, Jones WJ, Abad MC, Gibbs AC, Petrounia I ACS Med Chem Lett. 2011 Apr 18;2(7):538-43. doi: 10.1021/ml200070g. eCollection, 2011 Jul 14. PMID:24900346[3] From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. References
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