H-Arg-4MβNA (H-Arg-4MbNA) is a peptide that serves as a substrate for cathepsin H. The enzyme activity is often detected in gel electrophoresis.

Sempervirine nitrate , a specific molecular inhibitor of Mdm2, to MEF cells abrogated Period 2 ubiquitination leading to the accumulation of a stable pool of Period 2.

Tomentosin is a antiphlogistic sesquiterpene lactone that can be isolated from Inula falconeri.Tomentosin induces apoptosis and inhibits proliferation, migration and invasion of pancreatic cancer cells.