inositol-1,4,5-triphosphate

inositol-1,4,5-triphosphate

(ĭn-ŏs′ĭ-tŏl),

IP3

An intracellular second messenger molecule that stimulates the endoplasmic reticulum of the cell to release calcium.
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References in periodicals archive ?
Inositol-1,4,5-triphosphate releases calcium from skinned cultured smooth muscle cells.
It has attracted much attention because of its optical properties and also because of recent investigations which show that certain inositol derivatives are connected to the mechanisms for the transmission of information between living cells, a process which is referred to as "cell-signaling." For example, it has been disclosed recently that inositol-1,4,5-triphosphate, which is a decomposition product from inositol phospholipid and diacyglycerol, plays an important role as "second messengers" in the cell-signaling mechanism.