Home MAPK MEK inhibitor - ERK inhibitor BIX 02189 For research use only.

BIX 02189

BIX02189 is a selective inhibitor of MEK5 with IC50 of 1.5 nM, also inhibits ERK5 catalytic activity with IC50 of 59 nM in cell-free assays, and does not inhibit closely related kinases MEK1, MEK2, ERK2, and JNK2.

BIX 02189 Chemical Structure

BIX 02189 Chemical Structure

CAS No. 1094614-85-3

Purity & Quality Control

BIX 02189 Related Products

Signaling Pathway

MEK Signaling Pathways

MEK Signaling Pathway

Cell Data

Cell Lines Assay Type Concentration Incubation Time Formulation Activity Description PMID
HeLa Function assay Inhibition of ERK5 phosphorylation in sorbitol-stimulated human HeLa cells, IC50 = 0.059 μM. 23656407
DAOY qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for DAOY cells 29435139
SJ-GBM2 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SJ-GBM2 cells 29435139
SK-N-MC qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-MC cells 29435139
BT-37 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for BT-37 cells 29435139
NB-EBc1 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for NB-EBc1 cells 29435139
Saos-2 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for Saos-2 cells 29435139
SK-N-SH qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for SK-N-SH cells 29435139
BT-12 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for BT-12 cells 29435139
OHS-50 qHTS assay qHTS of pediatric cancer cell lines to identify multiple opportunities for drug repurposing: Primary screen for OHS-50 cells 29435139
Click to View More Cell Line Experimental Data

Biological Activity

Description BIX02189 is a selective inhibitor of MEK5 with IC50 of 1.5 nM, also inhibits ERK5 catalytic activity with IC50 of 59 nM in cell-free assays, and does not inhibit closely related kinases MEK1, MEK2, ERK2, and JNK2.
Targets
MEK5 [1]
(Cell-free assay)		 ERK5 [1]
(Cell-free assay)
1.5 nM 59 nM
In vitro
In vitro BIX02189 blocks MEK5 and ERK5 catalytic activity with IC50 values of 1.5 nM and 59 nM, respectively. They are more potent than the effect caused by BIX02188 with IC50 values of 4.3 nM and 810 nM, respectively. BIX02189 shows inhibitory activity against CSF1R (FMS) with IC50 of 46 nM but displays no activity against related kinases MEK1, MEK2, ERK1, p38α, JNK2, EGFR, and STK16 with IC50 values of >3.7 μM. Pretreatment with BIX02189 inhibits sorbitol-induced phosphorylation of ERK5 in HeLa cells in a dose dependent manner, and displays no inhibitory activity against the phosphorylation of ERK1/2, p38, and JNK1/2 MAPKs. Treatment with only BIX02189 for 24 hours in HeLa or HEK293 cells does not show any cytotoxic effect. BIX02189 inhibits MEK5/ERK5/MEF2C-driven luciferase expression in HeLa and HEK293 cells with IC50 values of 0.53 μM and 0.26 μM, respectively. This is a more significant than the effect caused by BIX02188. [1] BIX02189 inhibits the activation of ERK5, and suppresses C-terminus of Hsc70-interacting protein (CHIP) mediated p53 ubiquitination, leading to the reverse of the protective effect caused by laminar flow (L-flow) in human umbilical vein endothelial cells (HUVECs) exposed to 15d-PGJ2. [2] BIX02189 (10 uM) inhibits ERK5 phosphorylation, and reduces myocyte enhancer factor 2 (MEF2) transcriptional activity in neonatal rat cardiomyocytes (NRCMs) stimulated by isoproterenol. BIX02189 enhances the sorbitol induced apoptosis in NRCMs, confirming the protective role of ERK5 in cardiomyocytes. [3]
Kinase Assay Catalytic assay
MEK5 protein isolated from the baculovirus expression system is used to measure kinase activity utilizing PKLight ATP Detection Reagent. The assay is performed using 15 nM GST-MEK5 and 0.75 μM ATP in assay buffer consisting of 25 mM Hepes, pH 7.5, 10 mM MgCl2, 50 mM KCl, 0.2% BSA, 0.01% CHAPS, 100 μM Na3VO4, 0.5 mM DTT and 1% DMSO in the presence of varying concentrations of BIX02189. The kinase reaction mixture is incubated for 90 minutes at room temperature followed by addition of 10 μL of ATP detection reagent for 15 minutes. The relative light unit (RLU) signal is measured and the RLU signals are converted to percent of control (POC) values for the determination of IC50 value.
Cell Research Cell lines HeLa cells
Concentrations Dissolved in DMSO, final concentration ~10 μM
Incubation Time Pretreatment for 1.5 hours
Method

The cells are serum starved for 20 hours prior to stimulation with sorbitol at a final concentration of 0.4 M for 20 minutes at 37 °C. BIX02189 is added 1.5 hours prior to the addition of sorbitol. The cells are harvested and lysed in 50 μL RIPA buffer containing Halt protease and phosphate inhibitors at 4 °C for 5-10 minutes. The lysates are centrifuged for 10 minutes at 14,000 rpm and 50 μL lysate is added to 50 μl 2× sample buffer and boiled for 4 minutes at 95 °C. Twenty microliters sample is run on SDS–PAGE 10% Tris-glycine gels and transferred to nitrocellulose. Western blotting is done with appropriate antibodies.

Chemical Information & Solubility

Molecular Weight 440.54 Formula

C27H28N4O2
CAS No. 1094614-85-3 SDF Download BIX 02189 SDF
Smiles CN(C)CC1=CC(=CC=C1)N=C(C2=CC=CC=C2)C3=C(NC4=C3C=CC(=C4)C(=O)N(C)C)O
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 88 mg/mL ( (199.75 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 88 mg/mL

Water : Insoluble


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In vivo
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Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

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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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Frequently Asked Questions

Question 1:
I would like to perform some in vivo experiments in immunodeficient mice. how to perform the experiment in the best way? How to reconstitute the compound for in vivo experiments?

Answer:
We suggest the following vehicle for BIX02189: 30% PEG400+0.5% Tween80+5% Propylene glycol, you can make a suspension at up to 30mg/ml that can be used for oral gavage. Or for i.p. injection, S1531 BIX 02189 can be dissolved in 2% DMSO+30% PEG 300+5% Tween 80+ddH2O at 10 mg/ml clearly.

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