PhosphorylaseaActivity in Rat Uterine Homogenates: Protection by Ethylenediaminetetraacetate

1 April 1968

journal article
research article
Published by The Endocrine Society in Endocrinology

Vol. 82 (4) , 795-798
https://doi.org/10.1210/endo-82-4-795

Abstract

The chelating agent, EDTA prevented time-dependent decreases in phosphorylase a activity during assay. Total phosphorylase t activity estimated in the presence of adenosine-5''-monophosphate (AMP) did not change. EDTA appears to prevent conversion of active rat uterine phosphorylase a to a form which requires AMP for catalytic activity.

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