Unlike phosphatidyl choline, phosphatidyl inositol, or PI for brevity, is not purely a phospholipid. The substance contains an alcohol, inositol, with a ring structure, which acts as a substrate for a large number of enzymes involved in cell signaling – the process by which a cell converts one kind of signal or stimulus to another, such as when your stomach tells you brain that you are already full, or when the epidermis of your hand signals your brain that the pan is hot when you try to touch it.
The biochemical process of cell signaling is essential because without it, you would have no idea how to react to danger. You wouldn’t know for instance that there is a fire somewhere when you smell smoke and hence, won’t be able to take any precautions to avoid getting in harm’s way.
Besides playing a significant role in cell signaling, PI in lecithin granules also generally aids in maintaining the integrity of the cell structure, sharing much of PC’s functions.
Phosphatidyl Inositol (PI) - Lecithin Granules
