Home TGF-beta/Smad PKC inhibitor Bisindolylmaleimide I (GF109203X) For research use only.

Bisindolylmaleimide I (GF109203X)

Synonyms: GO 6850

Bisindolylmaleimide I (GF109203X, GO 6850) is a potent PKC inhibitor with IC50 of 20 nM, 17 nM, 16 nM, and 20 nM for PKCα, PKCβI, PKCβII, and PKCγ in cell-free assays, respectively, showing more than 3000-fold selectivity for PKC as compared to EGFR, PDGFR and insulin receptor.

Bisindolylmaleimide I (GF109203X) Chemical Structure

Bisindolylmaleimide I (GF109203X) Chemical Structure

CAS No. 133052-90-1

Purity & Quality Control

Bisindolylmaleimide I (GF109203X) Related Products

Signaling Pathway

PKC Signaling Pathways

PKC Signaling Pathway

Cell Data

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
RAW264.7 Function assay 24 hrs Protection against Bacillus anthracis lethal toxin-mediated cytotoxicity in mouse RAW264.7 cells assessed as change in viability after 24 hrs by WST1 dye reduction assay, IC50=1.5μM 17485504
RAW264.7 Function assay Protection against Bacillus anthracis protective antigen and lethal toxin-diphtheria toxin chimeric protein mediated cytotoxicity in mouse RAW264.7 cells assessed as cell viability 17485504
CHO Function assay Inhibition of Bacillus anthracis anthrax protective antigen heptamer pre-pore to pore conversion in CMG2-expressing CHO cells 19540764
insect cells Function assay 120 mins Inhibition of N-terminal GST tag LMTK3 kinase domain (133 to 415 amino acids) (unknown origin) expressed in insect cells incubated for 120 mins by radiometric fluorescent detection based CisBio KinEASE STK-S1 kit based assay, IC50=0.0001318μM ChEMBL
Sf9 Function assay 30 min Inhibition of GSK3beta (unknown origin) expressed in Sf9 cells using GS1 as substrate and [gamma32]ATP after 30 min by scinitllation counting, IC50=0.19055μM ChEMBL
Click to View More Cell Line Experimental Data

Biological Activity

Description Bisindolylmaleimide I (GF109203X, GO 6850) is a potent PKC inhibitor with IC50 of 20 nM, 17 nM, 16 nM, and 20 nM for PKCα, PKCβI, PKCβII, and PKCγ in cell-free assays, respectively, showing more than 3000-fold selectivity for PKC as compared to EGFR, PDGFR and insulin receptor.
Features Greater selectivity than PKC inhibitor staurosporine. GF109203X is a chemical probe for studying PKC signal transduction pathways. Potential for use in a variety of cancers.
Targets
PKCβ2 [1]
(Cell-free assay)		 PKCβ1 [1]
(Cell-free assay)		 PKCα [1]
(Cell-free assay)		 PKCγ [1]
(Cell-free assay)
16 nM 17 nM 20 nM 20 nM
In vitro
In vitro GF109203X, as an ATP-competitive PKC inhibitor, prevents platelet aggregation induced by stimuli that activate PKC, and has the potential as a tool for studying the involvement of PKC in signal transduction pathways. [1] GF 109203X produces reversal activity on P-glycoprotein and MRP -mediated multidrug resistance. [2] [3] PKC inhibition by GF109203X significantly reduces carbachol-stimulated ERK1/2 activation and the subsequent proliferation of SNU-407 colon cancer cells. [4]
Kinase Assay Assay of protein kinase C
Protein kinase C is arrayed by measuring 32PI transferred from [gamma-32PI] ATP to lysine-rich histone type Ill-s. The reaction mixture (80 μL) contained 50 mM Tris-HCI. pH 7.4, 100 μM CaCl2, 10 mM MgCI2, 37.5 μL/mL histone type Ill-s, 10 μM [gamma-32PI] ATP (1250 cpm/pmol), 31 μM bovine brain phosphatidylserine and 0.5 μM 1,2 sn-dioleylglycerol. Fifteen μL of purified PKC (final concentration in assay 0.38 μg/mL) is added to the incubation mixture. After 10 min at 30°C, the reaction is stopped by addition of 30 μL of casein 30 mg/mL and 0.9 ml of 12% trichloroacetic acid. The acid precipitable material is collected by centrifugation, dissolved in 1N NaOH (100μL) and precipitated again with 1 ml of 12% trichloroacetic acid. The pellet is dissolved in 1N NaOH (100μL) and 32P incorporation is measured by scintillation counting in Aquasol.
Cell Research Cell lines SNU-407 colon cancer cells
Concentrations 1 μM
Incubation Time 48 hours
Method

Cell proliferation is monitored by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay. Cells are seeded in 96-well plates and allowed to grow overnight. The cells are serum-starved for 18–24 hours and then treated with 1 mM carbachol for 48 hours in 100 μL serum-free RPMI 1640. Inhibitors are added 30 min prior to carbachol treatment. Following the treatment, 10 μL of MTT solution (5 mg/ml) is applied to each well, and the plates were incubated for 3 h at 37 °C. After the medium is removed, the formazan crystals formed are solubilized in 100 μL DMSO. The absorbance at 570 nm is measured using a microplate reader and the background absorbance at 690 nm is subtracted. Each assay is performed in triplicate.
Experimental Result Images Methods Biomarkers Images PMID
Western blot pMAPK / pCREB / pAKT p-HDAC5 / HDAC5 p-PKD / PKD 11532940
In Vivo
In vivo GF109203X (10 μg/mouse, i.pl.) dose-dependently inhibits BK-induced mechanical allodynia in Wistar rats. [5]
Animal Research Animal Models Wistar rats
Dosages 10 μg
Administration i.pl

Chemical Information & Solubility

Molecular Weight 412.48 Formula

C25H24N4O2
CAS No. 133052-90-1 SDF --
Smiles CN(C)CCCN1C=C(C2=CC=CC=C21)C3=C(C(=O)NC3=O)C4=CNC5=CC=CC=C54
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 82 mg/mL ( (198.79 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 1 mg/mL

Water : Insoluble


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In vivo
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Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

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