D-myo-Inositol-1,2,6-phosphate (Ins(1,2,6)-P3) is a member of the inositol phosphate (InsP) family of second messengers that play a critical role in the transmission of cellular signals.1,2 The most studied InsP, Ins(1,4,5)-P3 is a second messenger produced in cells by phospholipase C (PLC)-mediated hydrolysis of phosphatidylinositol-4,5-biphosphate.3,4 Binding of Ins(1,4,5)-P3 to its receptor on the endoplasmic reticulum results in opening of the calcium channels and an increase in intracellular calcium.4,5 Ins(1,2,6)-P3 (tested as the D/L racemic mixture) is ~1,000-fold less potent than Ins(1,4,5)-P3 at initiating Ca2+ release when injected into Xenopus oocytes.6WARNING This product is not for human or veterinary use.
