High resolution

Module 2: Figure inositol phosphate metabolism

Inositol phosphate metabolism.

The major input into this metabolic system is the Ins1,4,5P3 released from the membrane following receptor-activated inositol lipid signalling. One of the functions of this pathway is to form free inositol that is used for inositol lipid synthesis. The pathway also generates additional inositol phosphates (highlighted in pink) that have putative signalling functions. See the text for further details of the enzymes responsible for Steps 1–17.