2. Signaling Pathways
  3. MAPK/ERK Pathway
  4. MEK

MEK

Mitogen-activated protein kinase kinase; MAPKK; MAP2K

MEK

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MEK (Mitogen-activated protein kinase kinase, MAPKK) is a kinase enzyme which phosphorylates mitogen-activated protein kinases (MAPKs). The activated MAPK leads to the phosphorylation of downstream transcription factors that regulate various responses such as stress signaling, pathogen response, and hormone signaling.

In general, the MAPKKK phosphorylates a serine or threonine residue on a MAPKK, which sequentially activates a MAPK (ERK, p38 or JNK), the last protein in the cascade. Activation of the p38 MAPK occurs mainly through mitogen-activated protein kinase kinase 3 (MKK3) and MKK6 (sometimes MKK4). The JNK is regulated by two upstream MAP2Ks: MKK4 and MKK7. The highly homologous kinases, MEK1 and MEK2, act downstream of Ras and Raf to activate ERK mitogen-activated protein kinases.

MEK Isoform Specific Products:

MEK Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-114323
    PROTAC FLT-3 degrader 1
    		Inhibitor 99.74%
    PROTAC FLT-3 degrader 1 is an effective and selective FLT-3 PROTAC degrader with an IC50 of 0.6 nM. PROTAC FLT-3 degrader 1 inhibits both FLT-3 and FLT-3 ITD mutants. PROTAC FLT-3 degrader 1 has the activity of anti-proliferation and induction of apoptosis, which can be used in the study of tumor. (Pink: FLT3 ligand (HY-168702); Black: Linker (HY-124380); Blue: VHL ligand (HY-125845)).
    PROTAC FLT-3 degrader 1
  • HY-16446
    SAR125844
    		98.17%
    SAR125844 is a potent, selective, and ATP-competitive MET kinase inhibitor with the value of IC50 is 4.2 nM and Ki is 2.8 nM. SAR125844 has antitumor activity and can be used for the research of cancer.
    SAR125844
  • HY-159846
    Luvometinib
    		Inhibitor 99.94%
    Luvometinib is a mitogen-activated protein kinase (MEK) inhibitor with antitumor activity.
    Luvometinib
  • HY-153445
    Polfurmetinib
    		Inhibitor 98.69%
    Polfurmetinib (MEK-IN-6) (Example 69) is a MEK inhibitor. MEK-IN-6 inhibits ERK1/2 (Thr202/Tyr204) phosphorylation in A375 cells (IC50: 2 nM). Polfurmetinib can be used for research of cancer.
    Polfurmetinib
  • HY-19700S
    trans-Zeatin-d5
    		Inhibitor 99.20%
    trans-Zeatin-d5 is deuterium labeled trans-Zeatin. trans-Zeatin is a plant cytokinin, which plays an important role in cell growth, differentiation, and division; trans-Zeatin also inhibits UV-induced MEK/ERK activation.
    trans-Zeatin-d<sub>5</sub>
  • HY-107620
    PD 198306
    		Inhibitor 99.75%
    PD 198306 is a selective MAPK/ERK-kinase (MEK) inhibitor. PD 198306 results in an observable reduction in the Streptozocin induced increase in the level of active ERK1 and 2. Antihyperalgesic effects.
    PD 198306
  • HY-10254G
    Mirdametinib (GMP)
    		Inhibitor
    Mirdametinib (PD0325901) (GMP) is Mirdametinib (HY-10254) produced by using GMP guidelines. GMP small molecules works appropriately as an auxiliary reagent for cell therapy manufacture. Mirdametinib is an orally active, selective and non-ATP-competitive MEK inhibitor.
    Mirdametinib (GMP)
  • HY-B0185AS
    Lidocaine-d10 hydrochloride
    		Inhibitor 99.55%
    Lidocaine-d10 (hydrochloride) is the deuterium labeled Lidocaine hydrochloride. Lidocaine hydrochloride (Lignocaine hydrochloride) inhibits sodium channels involving complex voltage and using dependence. Lidocaine hydrochloride decreases growth, migration and invasion of gastric carcinoma cells via up-regulating miR-145 expression and further inactivation of MEK/ERK and NF-κB signaling pathways. Lidocaine hydrochloride, an amide derivative, has the potential for the research of the ventricular arrhythmia.
    Lidocaine-d<sub>10</sub> hydrochloride
  • HY-156625
    Nedometinib
    		Inhibitor 98.25%
    Nedometinib (NFX-179) is a specific MEK1 inhibitor with an IC50 of 135 nM. Nedometinib inhibits p-ERK, MAPK. Nedometinib exerts anticancer activity against squamous cell carcinoma. Nedometinib can be used for research in dermatosis, neurofibromatosis.
    Nedometinib
  • HY-107621
    U0124
    		98.0%
    U0124, an inactive U0126 analog, has no effect on c-Fos and c-Jun protein or mRNA levels. U0126 is a MEK inhibitor. U0124 does not inhibit MEK at concentrations up to 100 μM.
    U0124
  • HY-13079
    Cobimetinib (R-enantiomer)
    		Inhibitor 99.78%
    Cobimetinib R-enantiomer is the less active R-enantiomer of Cobimetinib. Cobimetinib is a potent and selective MEK inhibitor.
    Cobimetinib (R-enantiomer)
  • HY-12202
    MEK inhibitor
    		Inhibitor 98.35%
    MEK inhibitor is a potent MEK inhibitor with antitumor potency.
    MEK inhibitor
  • HY-128393
    Trilinolein
    		Inhibitor ≥98.0%
    Trilinolein is an orally active triglyceride that inhibits the PI3K/Akt, Ras/MEK/ERK signaling pathways, and MMP-2. Trilinolein can reduce oxidative stress, induce apoptosis, and inhibit cell migration. Trilinolein can be used in the research fields of cardiovascular disease, cerebrovascular disease (such as cerebral ischemia), and non-small cell lung cancer.
    Trilinolein
  • HY-101481
    Flurbiprofen axetil
    		Inhibitor 99.34%
    Flurbiprofen axetil is a non-selective COX inhibitor and a nonsteroidal anti-inflammatory agent with anti-inflammatory and analgesic effects. Flurbiprofen axetil inhibits basal-like breast cancer metastasis by inhibiting the MEK/ERK signaling pathway. Flurbiprofen axetil can promote neuroprotection after focal cerebral ischemia in rats by partially activating PPAR-γ. Flurbiprofen axetil alleviates cerebral ischemia/reperfusion injury by reducing inflammation in a transient global cerebral ischemia/reperfusion rat model. Flurbiprofen axetil can alleviate inflammatory responses and cognitive function in a mild cognitive impairment (MCI) SD rat model through the AMPKα/NF-κB signaling pathway.
    Flurbiprofen axetil
  • HY-142042
    3-Hydroxy-4-carboxyalkylamidino-5-arylamino-isothiazoles
    		Inhibitor 99.84%
    3-Hydroxy-4-carboxyalkylamidino-5-arylamino-isothiazoles is an inhibitor for bone morphogenetic protein 2 (BMP2) with an IC50 of 2.2 μM. 3-Hydroxy-4-carboxyalkylamidino-5-arylamino-isothiazoles is inhibitor for mitogen-activated protein kinase 1 (MEK1). 3-Hydroxy-4-carboxyalkylamidino-5-arylamino-isothiazoles exhibits anti-inflammatory and neuroprotective activity in EAE mouse model.
    3-Hydroxy-4-carboxyalkylamidino-5-arylamino-isothiazoles
  • HY-10999R
    Trametinib (Standard)
    		Inhibitor
    Trametinib (Standard) is the analytical standard of Trametinib. This product is intended for research and analytical applications. Trametinib (GSK1120212; JTP-74057) is an orally active MEK inhibitor that inhibits MEK1 and MEK2 with IC50s of about 2 nM. Trametinib activates autophagy and induces apoptosis.
    Trametinib (Standard)
  • HY-10174
    PD184161
    		Inhibitor 98.08%
    PD184161 is an orally active MEK inhibitor. PD184161 inhibits MEK activity (IC50=10-100 nM) in a time- and concentration-dependent manner. PD184161 inhibits cell proliferation and induces apoptosis. PD184161 produces depressive-like behavior.
    PD184161
  • HY-107619
    PD-334581
    		Inhibitor 99.72%
    PD-334581 is a MEK1 inhibitor.
    PD-334581
  • HY-14947
    Balamapimod
    		Inhibitor 99.47%
    Balamapimod (MKI 833) is a reversible Ras/Raf/MEK inhibitor with potential anti-tumor activity.
    Balamapimod
  • HY-160142
    UBX-382
    		Inhibitor
    UBX-382 is an orally active BTK PROTAC degrader with a DC50 of 4.56 nM. UBX-382 inhibits B-cell receptor signaling by targeting BTK. UBX-382 shows superior degradation activity for wild-type and mutant BTK proteins. UBX-382 inhibits tumor growth in murine xenograft models harboring wild-type or C481S mutant BTK-expressing TMD-8 cells. UBX-382 can be used for the study of B-cell-related blood cancers.
    UBX-382
Cat. No. Product Name / Synonyms Application Reactivity
MEK Isoform Comparison

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