Background:

1,2-Dipalmitoyl-sn-glycerol is a diacylglycerol that contains palmitic acid at the sn-1 and sn-2 positions. It activates protein kinase C (PKC) by 15% when used at a concentration of 25 μM.[1] 1,2-Dipalmitoyl-sn-glycerol promotes exponential growth of Frankia Gram-positive bacteria.[2]

Reference:
[1]. Walker, J.M., and Sando, J.J. Activation of protein kinase C by short chain phosphatidylcholines. J. Biol. Chem. 263(10), 4537-4540 (1988).
[2]. Selim, S., and Schwencke, J. 1,2-dipalmitoyl phosphatidylcholine, 1,2-dipalmitoyl phosphatidic acid or 1,2-dipalmitoyl-sn-glycerol inhibit sporangia formation and promote exponential growth of various Frankia isolates from the casuarinaceae family. Soil Biol. Biochem. 26(5), 569-575 (1994).