Medical Definition of Phosducin
1.
Protein (33 kD) that inhibits Gs GTPase activity (a GIP). Isolated from bovine brain and found in retina, pineal gland and many other tissues. Activity of phosducin is inhibited if phosphorylated by a cAMP dependent protein kinase.
This entry appears with permission from the Dictionary of Cell and Molecular Biology
(11 Mar 2008)
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