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  The Value of Escharotics: Medicines Which Will Destroy Any Living or Fungus Growth in the Treatment of Cancer, Lupus, Sarcoma and Other Forms of Malignancy

  Perry Nichols & co-workers.

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  1952, 1954.

  L261 . S26

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• Article

  Effects of various ligands on interaction of AMP deaminase with myosin.

  Ogasawara N, Goto H, Yamada Y.

  Biochim Biophys Acta. 1978 Jun 09;524(2):442-6.

  Purified rat muscle AMP deaminase (AMP aminohydrolase, EC 3.5.4.6) binds tightly to rat myosin. The binding is abolished in the presence of low concentrations of various ligands. Pyrophosphate and GTP at concentrations as low as 0.1 micrometer were effective in abolishing the interaction between two proteins. Other nucleoside triphosphates were less effective than GTP and the concentrations required for 50% inhibition were approximately 0.3 to 0.7 micrometer. ADP and AMP are effective in inhibiting the interaction between two proteins, but they are less effective than the nucleoside triphosphates; 50% inhibition occurred at 34 micrometer with ADP and at 1 mM with AMP. Creatine phosphate and inorganic phosphate showed 50% inhibition at 5 to 6 mM. All of the compounds, which affected AMP deaminase activity, were effective in abolishing the interaction of the enzyme with myosin; however, the interaction-abolishing effects of the compounds are not parallel with their inhibitory effects on the deaminase activity. Although there exist three parental isozymes of AMP deaminase in the rat, all three enzymes interacted with myosin.

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