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  • Title: Occurrence of two distinct succinate thiokinases in animal tissues.
    Author: Weitzman PD, Jenkins T, Else AJ, Holt RA.
    Journal: FEBS Lett; 1986 Apr 07; 199(1):57-60. PubMed ID: 3956747.
    Abstract:
    Although succinate thiokinase from mammalian sources has hitherto been described as showing substrate specificity for guanine nucleotide, a range of mammalian tissues has here been found to display succinate thiokinase activity with both guanine and adenine nucleotides as substrates. Evidence is presented for the existence of two distinct succinate thiokinases and this is confirmed by their separation by affinity chromatography. Each enzyme is specific for one nucleotide and is inhibited by the non-substrate nucleotide. The physiological roles of the two enzymes is yet to be established.
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