Diacylglycerol

Acts as a lipid signaling molecule and an intermediate in the synthesis of triglycerides and phospholipids, consisting of a glycerol backbone esterified with two fatty acid chains.

Key Functions:

• Activates protein kinase C, initiating various signaling cascades.
• Intermediate in triglyceride and phospholipid synthesis.
• Involved in membrane fusion and trafficking.

Interacting Systems & Components:

• Protein Kinase C (activates)
• Phosphatidic Acid (can be converted to/from)
• Triacylglycerol (precursor for)
• Phosphatidylinositol (formed from hydrolysis of PIP2)
• Cell Signaling Pathways (key secondary messenger)