U120
U0126 ethanolate
≥98% (HPLC), MEK inhibitor, powder
Synonym(s):
1,4-Diamino-2,3-dicyano-1,4-bis(o-aminophenylmercapto)butadiene ethanolate
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About This Item
Empirical Formula (Hill Notation):
C18H16N6S2 · C2H5OH
CAS Number:
Molecular Weight:
426.56
UNSPSC Code:
12352200
PubChem Substance ID:
NACRES:
NA.77
MDL number:
Product Name
U0126 ethanolate, ≥98% (HPLC), powder
SMILES string
N#CC(C(C#N)=C(N)SC1=C(N)C=CC=C1)=C(N)SC2=C(N)C=CC=C2.CCO
InChI key
CFQULUVMLGZVAF-UHFFFAOYSA-N
InChI
1S/C18H16N6S2.C2H6O/c19-9-11(17(23)25-15-7-3-1-5-13(15)21)12(10-20)18(24)26-16-8-4-2-6-14(16)22;1-2-3/h1-8H,21-24H2;3H,2H2,1H3
assay
≥98% (HPLC)
form
powder
storage condition
protect from light
color
white to off-white
solubility
DMSO: >10 mg/mL (Stock solutions in DMSO should be used within a month. Acidic solutions exhibit weaker inhibition)
storage temp.
2-8°C
Quality Level
Gene Information
human ... MAP2K1(5604), MAP2K2(5605)
Related Categories
Application
U0126 ethanolate has been used as an MEK inhibitor in mononucleated myogenic cells derived from breast muscles of chicken embryos. U0126 has also been used to study ERK2 function in amyloid precursor protein (APP) knockout (KO) mice neurons.
Biochem/physiol Actions
U0126 is a specific inhibitor of MEK1 and MEK2 (MAP kinase kinase; MAPKK); also inhibits a constitutively active, mutant form of MEK.
U0126, 1,4-diamino-2,3-dicyano-1,4-bis[2-aminophenylthio] butadiene, is a highly selective inhibitor of both MEK1 and MEK2. U0126 was found to functionally antagonize AP-1 transcriptional activity via noncompetitive inhibition of the dual specificity kinase MEK with IC50 of 72 nM for MEK1 and 58 nM for MEK2. U0126 inhibited anchorage-independent growth of Ki-ras-transformed rat fibroblasts by simultaneously blocking both extracellular signal-regulated kinase (ERK) and mammalian target of rapamycin (mTOR)-p70(S6K) pathways. The effects of U0126 on the growth of eight human breast cancer cell lines shown that U0126 selectively repressed anchorage-independent growth of MDA-MB231 and HBC4 cells, two lines with constitutively activated ERK. Loss of contact with substratum triggers apoptosis in many normal cell types, a phenomenon termed anoikis. U0126 sensitized MDA-MB231 and HBC4 to anoikis, i.e., upon treatment with U0126, cells deprived of anchorage entered apoptosis.
Disclaimer
photosensitive
Features and Benefits
This compound is a featured product for Kinase Phosphatase Biology research. Click here to discover more featured Kinase Phosphatase Biology products. Learn more about bioactive small molecules for other areas of research at sigma.com/discover-bsm.
This compound is featured on the MAPKs page of the Handbook of Receptor Classification and Signal Transduction. To browse other handbook pages, click here.
Preparation Note
U0126 ethanolate is soluble in DMSO at a concentration >10 mg/ml. Stock solutions of the product in DMSO should be used within a month. Acidic solutions of the product exhibit weaker MEK inhibitory functions.
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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Xiao-Yang Wang et al.
Molecular and cellular biology, 28(11), 3589-3599 (2008-03-26)
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Andrew J Billnitzer et al.
Journal of neurochemistry, 124(1), 123-132 (2012-10-16)
Amyloid precursor protein (APP) and its secreted form, sAPP, contribute to the development of neurons in hippocampus, a brain region critical for learning and memory. Full-length APP binds the low-density lipoprotein receptor-related protein (LRP), which stimulates APP endocytosis. LRP also
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Carcinomas, such as colon cancer, initiate their invasion by rescuing the innate plasticity of both epithelial cells and stromal cells. Although Snail is a transcriptional factor involved in the Epithelial-Mesenchymal Transition, in recent years, many studies have also identified the
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