References
RasGRP1 is a C1-domain containing protein that is activated by DAG and Ca2+ in a manner analogous to members of the PKC family.
PMID:17496910
DAG remains in the inner layer of the plasma membrane. It recruits Protein Kinase C (PKC) ??? a calcium-dependent kinase that phosphorylates many other proteins that bring about the changes in the cell.
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/S/Second_messengers.html