D-myo-Inositol-1,3,4,6-tetraphosphate (ammonium salt)

The inositol phosphates (IPs) are a family of molecules produced by altering the phosphorylation status of each of the six carbons on the cyclic inositol structure. They act as second messengers, regulating a wide array of cellular functions. D-myo-inositol-1,3,4,6-tetraphosphate(Ins(1,3,4,6)-P4) largely acts an intermediate, serving as substrate for inositol-1,3,4,6-tetraphosphate 5-kinase to produce inositol-1,3,4,5,6-pentaphosphate, or inositol-1,3,4,6-tetraphosphate 2-kinase to give inositol-1,2,3,4,6-pentaphosphate. These inositol pentaphosphates can be further phosphorylated to produce inositol-1,2,3,4,5,6-hexakisphosphate, or phytic acid, which serves diverse roles in eukaryotic tissues. Ins(1,3,4,6)-P4 is a poor activator of the inositol 1,4,5-trisphospate receptor in vitro. Other functions of this IP remain to be elucidated.

142507-74-2

C6H12O18P4?4NH4

568.2

0.98

O[C@H]1[C@H](OP([O-])(O)=[O+])[C@@H](OP([O-])(O)=O)[C@@H](O)[C@@H](OP([O-])(O)=O)[C@@H]1OP([O-])(O)=O.[NH4+].[NH4].[NH4+].[NH4+]