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Inositol polyphosphates, in their water-soluble or lipid-bound forms, represent a large and multifaceted family of signalling molecules. Some inositol polyphosphates are well recognised as defining important signal transduction pathways, as in the case of the calcium release factor Ins(1,4,5)P3, generated by receptor activation-induced hydrolysis of the lipid PtdIns(4,5)P2 by phospholipase C. The...
Diphospho‐myo‐inositol phosphates (PP‐InsPy) are an important class of cellular messengers. Thus far, no method for the transport of PP‐InsPy into living cells is available. Owing to their high negative charge density, PP‐InsPy will not cross the cell membrane. A strategy to circumvent this issue involves the generation of precursors in which the negative charges are masked with biolabile groups....
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