Rac GTPase fragment is a peptide with the sequence H2N-Val-Phe-Asp-Glu-Ala-Ile-Arg-Ala-Val-OH, MW= 1019.15. Rac is a subfamily of the Rho family of GTPases, small signaling G proteins (more specifically a GTPase).
Rhosin is an effective and specific RhoA subfamily RhoGTPases inhibitor, which specifically binds to RhoA to inhibit RhoA-GEF interaction (Kd: ~ 0.4 uM). Rhosin does not interact with Cdc42 or Rac1, nor the GEF, LARG. Rhosin causes cell apoptosis.