Journal of Enzyme Inhibition and Medicinal Chemistry 2007-02-01

Inhibition of carbonyl reductase activity in pig heart by alkyl phenyl ketones.

Yorishige Imamura, Rika Narumi, Hideaki Shimada

文献索引：J. Enzyme Inhib. Med. Chem. 22(1) , 105-9, (2007)

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摘要

The inhibitory effects of alkyl phenyl ketones on carbonyl reductase activity were examined in pig heart. In this study, carbonyl reductase activity was estimated as the ability to reduce 4-benzoylpyridine to S(-)-alpha-phenyl-4-pyridylmethanol in the cytosolic fraction from pig heart (pig heart cytosol). The order of their inhibitory potencies was hexanophenone > valerophenone > heptanophenone > butyrophenone > propiophenone. The inhibitory potencies of acetophenone and nonanophenone were much lower. A significant relationship was observed between Vmax/Km values for the reduction of alkyl phenyl ketones and their inhibitory potencies for carbonyl reductase activity in pig heart cytosol. Furthermore, hexanophenone was a competitive inhibitor for the enzyme activity. These results indicate that several alkyl phenyl ketones including hexanophenone inhibit carbonyl reductase activity in pig heart cytosol, by acting as substrate inhibitors.

相关化合物

  • 乙醇脱氢酶
  • 苯庚酮

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