Inhibition of the p-nitrophenyl phosphatase of leukocyte membranes by p-nitrophenyl phosphate preparation. |
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Authors: | A M Woodin |
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Affiliation: | Strangeways Research Laboratory, Wort''s Causeway, Cambridge, CB1 4RN, England |
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Abstract: | The p-nitrophenyl phosphatase activity of leukocyte membranes is dependent on the origin of the p-nitrophenyl phosphate used as substrate. Commercial samples contain stable inhibitors and recrystalized material contains an inhibitor that is decomposed by water. The (Mg2+-K+)-p-nitrophenyl phosphatase of nerve membranes is not dependent on the origin of the substrate. |
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