Shelf life (days): 1460.0
Formulation: A crystalline solid
Formal Name: (2E)-3-(6-bromo-2-pyridinyl)-2-cyano-N-[1S-phenylbutyl]-2-propenamide
Purity: ≥95%
Formula Markup: C19H18BrN3O
Formula Weight: 384.3
CAS Number: 856243-80-6
Notes: Protein ubiquitination is a dynamic process that can be reversed by deubiquitinating enzymes (DUBs) that remove ubiquitin from proteins, sparing them from degradation by the proteasome. The DUBs have been divided into two subgroups: ubiquitin-specific proteases (USPs) and ubiquitin-specific COOH-terminal hydrolases (UCHs). Recent evidence suggests that several DUBs are activated in tumor cells and many contribute to a transformed phenotype.{24477} WP1130 is a second-generation tyrphostin derivative that inhibits the deubiquitinase activity of USP9x, USP5, USP14, and UCH37.{24478,24477} At 5 μM, WP1130-mediated inhibition of tumor-activated DUBs induces a rapid accumulation of protein-ubiquitin conjugates, resulting in the formation of aggresomes and apoptosis in a variety of tumor cells.{24477} Through this mechanism, WP1130 has been shown to downregulate the antiapoptotic proteins Bcr/Abl and Jak2 and to upregulate the proapoptotic proteins MCL-1 and p53.{24477}
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