Author:
Narindrasorasak Suree,Sanwal Bishnu D.
Abstract
A high-affinity phosphodiesterase, termed PDE II, has been purified about 1400-fold from rabbit skeletal muscle. This enzyme is activated by treatment with proteases. It is also activated specifically by polyarginine and arginine-rich histones, but not by other polyanions. The activation is counteracted nonspecifically by polycations, such as heparin and chrondroitin sulphate. When the enzyme is fully activated by polyarginine it is no longer susceptible to activation by proteases. A conformational or structural change must thus occur in the enzyme by the binding of the polyanions.
Publisher
Canadian Science Publishing
Subject
Cell Biology,Molecular Biology,Biochemistry
Cited by
4 articles.
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