Clasto-lactacystin(Omuralide)

A cell permeable, irreversible proteasome inhibitor. It is 20-fold more potent than Lactacystin. Lactacytstin spontaneously converts to clasto-lactacystin in biological systems. Clasto-lactacystin is the only cell permeable form of lactacystin. Induces neurite growth and inhibits cell cycle progression similar to lactacytin.

References: Craiu, A., et al.: J. Biol. Chem., 272, 13437 (1997), Dick, G.L.R., et al.: J. Biol. Chem., 272, 182 (1997), Fenteany, G. and Schreiber, S.: J. Biol. Chem., 273, 8545 (1998), Corey, E.J., et al.: J.A.C.S., 120, 2330 (1998)