Rac
Rac is a subfamily of the Rho family of GTPases, small (~21 kDa) signaling G proteins (more specifically a GTPase).
The subgroup include:
Rac1.
Rac2.
Rac3
RhoG
Some research has suggested that Rac could be involved in mediating the process of forgetting.
Results strongly suggest that Rac acts as a positive regulator of the PAR-elicited release of phosphorylated-HSP27 from human platelets via p38 MAPK but not JNK 1).
1)
Uematsu K, Enomoto Y, Onuma T, Tsujimoto M, Doi T, Matsushima-Nishiwaki R,
Tokuda H, Ogura S, Iida H, Kozawa O, Iwama T. Rac Regulates the TRAP-Induced
Release of Phosphorylated-HSP27 from Human Platelets via p38 MAP Kinase but Not
JNK. Cell Physiol Biochem. 2018 Sep 13;49(4):1523-1538. doi: 10.1159/000493456.
[Epub ahead of print] PubMed PMID: 30212812.