Effects of isoproterenol on cyclic AMP and cyclic AMP-dependent protein kinase in developing chick myocardium.

Abstract

Embryonic chick (7-9 day) and newborn chick myocardia contain one major peak of cyclic AMP-dependent protein kinase activity as assessed by DEAE-cellulose chromatography. Evidence is presented that the cyclic AMP-dependent protein kinase activity ratios (activity in absence of cyclic AMP/activity in presence of added cyclic AMP) of homogenates prepared with… (More)

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