Voprosy meditsinskoi khimii (ISSN 0042-8809)

Comparison of the activity and properties of 5'-nucleotidase in the homogenates and plasma membranes of the normal liver, hepatomas and of the liver in mice with inoculated hepatomas of varying degrees of malignancy

   
Davydova S.Ya.
PubMed Id: 42219
Year: 1979 vol: 25  issue:6  pages: 752-755
Abstract: Activity of 5'-nucleotidase was significantly lower in plasmatic membranes of highly malignant hepatoma 22 as compared with the activity found in normal liver tissue. The optimal activity of the enzyme from hepatoma 22 was found at pH 8.5 with AMP as a substrate. Decrease of pH value from 8.5 to 7.4 did not affect the enzymatic activity in homogenates and plasmatic membranes in the normal liver tissue. In all the experiments activity of 5'-nucleotidase was lower towards CMP as compared with AMP. The additive effect of the both substrates was observed only in experiments with hepatoma 22
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Reference: Davydova S.Ya., Comparison of the activity and properties of 5'-nucleotidase in the homogenates and plasma membranes of the normal liver, hepatomas and of the liver in mice with inoculated hepatomas of varying degrees of malignancy, Voprosy meditsinskoi khimii, 1979, vol: 25(6), 752-755.
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