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Inositol triphosphate

Inositol triphosphate (abbreviated InsP3, also called triphosphoinositol), together with diacylglycerol, is a second messenger molecule used in signal transduction in biological cells. It is made by hydrolysis of phosphatidyl inositol[?], a phospholipid that is located in the plasma membrane, by phospholipase C.

Its main functions are to mobilize Ca2+ from storage organelles and to regulate cell proliferation[?] and other cellular reactions. For example, in Drosophila, InsP3 is used for intracellular transduction of light recognition in eye cells.



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