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CAS number 133407-82-6 YesY
PubChem 462382
ChemSpider 406728 N
Jmol-3D images Image 1
Molecular formula C26H41N3O5
Molar mass 475.62 g mol−1
Appearance white solid
Solubility 100 mM in EtOH and DMSO
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

MG132 is a specific, potent, reversible, and cell-permeable proteasome inhibitor (Ki = 4 nM) . It reduces the degradation of ubiquitin-conjugated proteins in mammalian cells and permeable strains of yeast by the 26S complex without affecting its ATPase or isopeptidase activities. MG132 activates c-Jun N-terminal kinase (JNK1), which initiates apoptosis. MG132 also inhibits NF-κB activation with an IC50 of 3 µM and prevents β-secretase cleavage.