Bisindolylmaleimide IX (Ro 31-8220 Mesylate)
Catalog No.S7207 Synonyms: Bisindolylmaleimide IX Mesylate
Molecular Weight(MW): 553.65
Bisindolylmaleimide IX (Ro 31-8220 Mesylate) is a pan-PKC inhibitor with IC50 of 5 nM, 24 nM, 14 nM, 27 nM, and 24 nM for PKC-α, PKC-βI, PKC-βII, PKC-γ, and PKC-ε, respectively, and also shows potent inhibition against MAPKAP-K1b, MSK1, GSK3β and S6K1.
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|Description||Bisindolylmaleimide IX (Ro 31-8220 Mesylate) is a pan-PKC inhibitor with IC50 of 5 nM, 24 nM, 14 nM, 27 nM, and 24 nM for PKC-α, PKC-βI, PKC-βII, PKC-γ, and PKC-ε, respectively, and also shows potent inhibition against MAPKAP-K1b, MSK1, GSK3β and S6K1.|
Ro 31-8220 inhibits rat brain PKC activity with IC50 of 23 nM, and does not show any high degree of selectivity between PKC-α, PKC-β, PKC-γ, and PKC-ε.  Ro 31-8220 also inhibits MSK1, MAPKAPK1, RSK, GSK3β and S6K1 with a potency similar to that for PKC. In addition, Ro 31-8220 inhibits voltage-dependent Na+ channels.  Ro 31-8220 alters cellular protein kinase C localization and potently inhibits growth of A549 and MCF-7 cells with IC50 of 0.78 μM and 0.897 μM, respectively.  RO 31-8220 enhances epinephrine-induced platelet aggregation in catecholamine hypo-responsive platelets by enhancing Akt phosphorylation.  Ro 31-8220 significantly decreases apoE secretion from primary human macrophages by inhibiting vesicular transport of apoE to the plasma membrane without significantly affecting apoE mRNA or apoE protein levels. 
|In vivo||In MLP−/− Mice, Ro 31-8220 (6 mg/kg/d, s.c.) results in a significant increase in cardiac contractility. |
Assay of PKC Activity :Assay mixtures contain 0.2 mg/mL peptide-gamma, 10 μM MgCl2, 0.6 mM CaCl2, 10 μM [γ-32P]ATP, 1.25 mg/mL phosphatidylserine and 1.25 ng/mL phorbol 12-myristate 13-acetate in 20 mM Hepes (pH 7.5), 2 mM EDTA, 1 mM dithiothreitol and 0.02% (w/v) Triton X-100. Peptide-γ is a synthetic peptide, GPRPLFCRKGSLRQKW, resembling the PKC-γ pseudosubstrate site, except that a serine residue replaces the pseudosubstrate alanine, converting the peptide from an inhibitor into a substrat. The assays are started by the addition of 2.5 m-units of enzyme, incubated at 30 °C for 10 min and terminated by spotting on to P81 paper, followed by extensive washing in 75 mM orthophosphoric acid. The papers are then washed in ethanol, dried, and incorporated radioactivity is determined by liquidscintillation spectroscopy.
-  Wilkinson SE, et al. Biochem J. 1993, 294 ( Pt 2), 335-337.
-  Davies SP, et al. Biochem J. 2000, 351(Pt 1), 95-105.
-  Courage C, et al. Br J Cancer. 1995, 71(4), 697-704.
|In vitro||DMSO||100 mg/mL (180.61 mM)|
* Please note that Selleck tests the solubility of all compounds in-house, and the actual solubility may differ slightly from published values. This is normal and is due to slight batch-to-batch variations.
|Synonyms||Bisindolylmaleimide IX Mesylate|
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