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-13064A
    Cobimetinib hemifumarate
    		Inhibitor 99.73%
    Cobimetinib hemifumarate is a novel selective MEK1 inhibitor, and the IC50 value against MEK1 is 4.2 nM.
    Cobimetinib hemifumarate
  • HY-12202
    MEK inhibitor
    		Inhibitor 98.35%
    MEK inhibitor is a potent MEK inhibitor with antitumor potency.
    MEK inhibitor
  • HY-153863
    MS934
    		Degrader 98.82%
    MS934 is a novel improved VHL-recruiting MEK 1/2 degrader. MS934 has anti-proliferation potency at inhibiting the growth of HT-29 cells with a GI50 value of 0.023 μM. MS934 can be used for the research of variety of human cancers, such as melanoma, nonsmall cell lung cancer (NSCLC), colorectal cancer, primary brain tumors, and hepatocellular carcinoma.
    MS934
  • HY-13078
    Cobimetinib racemate
    		Inhibitor 99.71%
    Cobimetinib racemate (GDC-0973 racemate; XL518 racemate) is the racemate of Cobimetinib. Cobimetinib is a potent and selective MEK inhibitor.
    Cobimetinib racemate
  • HY-B0185R
    Lidocaine (Standard)
    		Inhibitor 99.85%
    Lidocaine (Standard) is the analytical standard of Lidocaine. This product is intended for research and analytical applications. Lidocaine (Lignocaine) inhibits sodium channels involving complex voltage and using dependence. Lidocaine 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 is an amide derivative and has potential for the research of ventricular arrhythmia.
    Lidocaine (Standard)
  • HY-148507
    GSK1790627
    		Inhibitor 98.81%
    GSK1790627 is the N-deacetylated metabolite of Trametinib (HY-10999). Trametinib is an orally active MEK inhibitor, and activates autophagy and induces apoptosis.
    GSK1790627
  • HY-10174
    PD184161
    		Inhibitor 99.38%
    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-131295
    PD0325901-O-C2-dioxolane
    		Inhibitor 98.76%
    PD0325901-O-C2-dioxolane has main portion of MEK inhibitor PD0325901. PD0325901-O-C2-dioxolane and a ligand of VHL or CRBN E3 ligase can be used in the synthesis of MEK1/2 degrader.
    PD0325901-O-C2-dioxolane
  • HY-16446
    SAR125844
    		98.11%
    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-156625
    Nedometinib
    		Inhibitor 98.25%
    Nedometinib is a tyrosine kinase inhibitor targeting to MEK1. Nedometinib has antineoplastic effect and can be used for research in dermatosis, cutaneous fibroneuroma, neurofibromatosis.
    Nedometinib
  • HY-107417
    Hypothemycin
    		Inhibitor ≥98.0%
    Hypothemycin, a fungal polyketide, is a multikinase inhibitor with Kis of 10/70 nM, 17/38 nM, 90 nM, 900 nM/1.5 μM, and 8.4/2.4 μM for VEGFR2/KDR/Flk-1/VEGFR1/Flt-1, MEK1/MEK2, FLT-3, PDGFRβ/PDGFRα, and ERK1/ERK2, respectively.
    Hypothemycin
  • HY-15504A
    RGB-286638 free base
    		Inhibitor 98.07%
    RGB-286638 is a CDK inhibitor that inhibits the kinase activity of cyclin T1-CDK9, cyclin B1-CDK1, cyclin E-CDK2, cyclin D1-CDK4, cyclin E-CDK3, and p35-CDK5 with IC50s of 1, 2, 3, 4, 5 and 5 nM, respectively; also inhibits GSK-3β, TAK1, Jak2 and MEK1, with IC50s of 3, 5, 50, and 54 nM.
    RGB-286638 free base
  • HY-10216
    Refametinib (R enantiomer)
    		Inhibitor
    Refametinib R enantiomer is a MEK inhibitor extracted from patent WO2007014011A2, compound 1022, has an EC50 of 2.0-15 nM.
    Refametinib (R enantiomer)
  • HY-N0811
    Anemarsaponin B
    		Inhibitor
    Anemarsaponin B is a steroidal saponin. Anemarsaponin B decreases the protein and mRNA levels of iNOS and COX-2. Anemarsaponin B reduces the expressions and productions of pro-inflammatory cytokines, including TNF-a and IL-6. Anemarsaponin B inhibits the nuclear translocation of the p65 subunit of NF-κB by blocking the phosphorylation of IκBα. Anemarsaponin B also inhibits the phosphorylation of MAP kinase kinases 3/6 (MKK3/6) and mixed lineage kinase 3 (MLK3). Anti-inflammatory effect .
    Anemarsaponin B
  • HY-19700S
    trans-Zeatin-d5
    		Inhibitor ≥99.0%
    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-B0185S1
    Lidocaine-d10
    		Inhibitor
    Lidocaine-d10 is the deuterium labeled Lidocaine. Lidocaine (Lignocaine) inhibits sodium channels involving complex voltage and using dependence[1]. Lidocaine 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 is an amide derivative and has potential for the research of ventricular arrhythmia[2].
    Lidocaine-d<sub>10</sub>
  • HY-107620
    PD 198306
    		Inhibitor
    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-B0185G
    Lidocaine (GMP)
    		Inhibitor
    Lidocaine (GMP) is Lidocaine (HY-B0185) produced by using GMP guidelines. GMP small molecules work appropriately as an auxiliary reagent for cell therapy manufacture. Lidocaine inhibits sodium channels involving complex voltage and using dependence. Lidocaine 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 is an amide derivative and has potential for the research of ventricular arrhythmia.
    Lidocaine (GMP)
  • 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-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)
Cat. No. Product Name / Synonyms Application Reactivity
MEK Isoform Comparison

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