Madrasin has been used as a spliceosome inhibitor to inhibit pre-mRNA processing in 3T3-L1 cells.
Biochem/physiol Actions
Madrasin is a potent and cell penetrant splicing inhibitor that interferes with the early stages of spliceosome assembly. Madrasin stalls spliceosome assembly at the A complex.
Madrasin is considered toxic to the cell at a higher concentration. At its minimal concentration, madrasin is known to induce subnuclear protein localization and cause cell cycle arrest.