A cell-permeable indenofurazinopyrazinone compound that is shown to directly target the F-box protein Met30 subunit of the Skp1-cullin-F-box (SCF) E3 ubiquitin ligase complex, disrupting Met30-Skp1 interaction and selectively inhibiting SCF^Met30, but not SCF^Cdc4, E3 ubiquitin ligase activity. SMER3 is reported to act in a synthetic lethal fashion with rapamycin (Cat. Nos. 553210, 553211, & 553212) in both human lung cancer A549 and in yeast cultures. SMER3 treatment (10 to 30 µM) results in cell cycle arrest and morphological phenotype resembling that seen with temperature-sensitive Met30, but not Skp1 or Cdc4, mutant under non-permissive temperature in yeast cultures.

Following reconstitution, aliquot and freeze (-20°C). Stock solutions are stable for up to 3 months at -20°C.

It is recommended to prepare a stock solution for 3 month use each time and store the unreconstituted material in solid form, protected from moisture and preferably under inert gas, for best long-term stability during storage.

Aghajan, M., et al. 2010. Nature Biotechnol.28, 738.

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

Toxicity: Regulatory Review (Z)