662125
Ubiquitin Isopeptidase Inhibitor I, G5
The Ubiquitin Isopeptidase Inhibitor I, G5, also referenced under CAS 108477-18-5, controls the biological activity of Ubiquitin Isopeptidase. This small molecule/inhibitor is primarily used for Protease Inhibitors applications.
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Synonym(s):
Ubiquitin Isopeptidase Inhibitor I, G5, 3,5-bis((4-Nitrophenyl)methylene)-1,1-dioxide, tetrahydro-4H-thiopyran-4-one, NSC-144303
Empirical Formula (Hill Notation):
C19H14N2O7S
Recommended Products
Quality Level
Assay
≥97% (HPLC)
form
solid
manufacturer/tradename
Calbiochem®
storage condition
OK to freeze
protect from light
color
yellow
solubility
DMSO: 10 mg/mL
shipped in
ambient
storage temp.
2-8°C
General description
A cell-permeable cross-conjugated α,β-unsaturated dienone compound that induces caspase activation and apoptosis (IC50 = 1.76 and 1.6 µM in E1A and E1A/C9DN cells, respectively) via the apoptosome-independent mitochondrial pathway by selectively inhibiting ubiquitin isopeptidase activity (IC50 = ~ 30 µM). The cellular expression of Bax and Bak is essential for G5-activated apoptosis, while Bcl-2 appears to protect cells against the effect of G5. G5 is more potent than, but otherwise exhibits similar pharmacological effects as, Ubiquitin Isopeptidase Inhibitor II, F6 (Cat. No. 662126). At higher concentrations (5-10 µM), shown to induce necrosis in apoptosis-resistant MEFs-DKO.
A cell-permeable cross-conjugated α,β-unsaturated dienone compound that induces caspase activation and apoptosis (IC50 = 1.76 and 1.6 µM in E1A and E1A/C9DN cells, respectively) via the apoptosome-independent mitochondrial pathway by selectively inhibiting ubiquitin isopeptidase activity (IC50 ~30 µM). The cellular expression of Bax and Bak is essential for G5-activated apoptosis, while Bcl-2 appears to protect cells against the effect of G5. G5 is more potent than, but otherwise exhibits similar pharmacological effects as, Ubiquitin Isopeptidase Inhibitor II, F6 (Cat. No. 662126). At higher concentrations (5-10 µM), shown to induce necrosis in apoptosis-resistant MEFs-DKO.
Biochem/physiol Actions
Cell permeable: yes
Primary Target
Ubiquitin isopeptidase activity
Ubiquitin isopeptidase activity
Product does not compete with ATP.
Reversible: no
Target IC50: ~ 30 µM against ubiquitin isopeptidase activity; 1.76 and 1.6 µM for the induction of caspase activation and apoptosis in E1A and E1A/C9DN cells, respectively
Packaging
Packaged under inert gas
Warning
Toxicity: Irritant (B)
Reconstitution
Unstable in DMSO; reconstitute just prior to use.
Other Notes
Fontanini, A., et al. 2009. J. Biol. Chem.284, 8369.
Aleo, E., et al. 2006. Cancer Res.66, 9235.
Aleo, E., et al. 2006. Cancer Res.66, 9235.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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