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  • Title: Covalently bound pyruvate in phosphopantothenoylcysteine decarboxylase from horse liver.
    Author: Scandurra R, Politi L, Santoro L, Consalvi V.
    Journal: FEBS Lett; 1987 Feb 09; 212(1):79-82. PubMed ID: 3803609.
    Abstract:
    Horse liver phosphopantothenoylcysteine decarboxylase (EC 4.1.1.36) incorporates nonexchangeable tritium from borotritide with a decrease of the activity. Substrate prevents both tritium incorporation and the decrease in activity. Acid and base hydrolysis of the tritiated protein releases labeled lactate identified by high-voltage paper electrophoresis, paper chromatography and silicic acid chromatography. These results indicate the presence of pyruvate covalently bound through an ester linkage to phosphopantothenoylcysteine decarboxylase which is then another example of a mammalian enzyme in which pyruvate is involved in a catalytic activity.
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