ATP analogues and the guinea-pig taenia coli: a comparison of the structure-activity relationships of ectonucleotidases with those of the P2-purinoceptor.


The dephosphorylation of adenine nucleotides and their analogues by ectonucleotidases on the guinea-pig taenia coli was studied using HPLC. The rate of dephosphorylation of each analogue was compared with its pharmacological potency relative to ATP. ATP, ADP and AMP were rapidly dephosphorylated, and substitution on the purine ring had no effect upon the… (More)


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