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-126180
    BAY-866
    		Inhibitor
    BAY-866, a sulfamide campound, is an allosteric MEK1 inhibitor with an IC50 of 14 nM. BAY-866 inhibits cell growth of A375 (BRAF) and HCT116 (K-Ras) with IC50s of 13 nM and 277 nM, respectively. BAY-866 inhibits tumor growth in K-Ras-mutated A549 xenograft model.
    BAY-866
  • HY-173153
    BRAFV600E/JNK-IN-1
    		Inhibitor
    BRAFV600E/JNK-IN-1 (Compound 14c) is an inhibitor of JNK1, JNK2, JNK3 and BRAFV600E, with IC50 values of 0.51 μM, 0.53 μM, 1.02 μM and 0.009 μM, respectively. BRAFV600E/JNK-IN-1 can inhibit the phosphorylation of MEK1/2 and ERK1/2. In addition, BRAFV600E/JNK-IN-1 can inhibit tumor cell proliferation, NO release and PGE2 production, and has anti-tumor and anti-inflammatory activities.
    BRAFV600E/JNK-IN-1
  • HY-183365
    SL43
    		Inhibitor
    SL43 is an orally active and potent SOS1 inhibitor with a Kd of 0.16 μM. SL43 disrupts SOS1-KRAS interaction, inhibits SOS1-mediated nucleotide exchange on KRAS mutants, and suppresses RAS-MAPK signaling. SL43 exerts antiproliferative activity against KRAS-mutant cancer cells, induces early apoptosis and G1 phase cell cycle arrest, and reduces phosphorylated MEK and ERK levels. SL43 suppresses tumor growth in a colorectal cancer xenograft model.
    SL43
  • HY-180327
    NEPP11
    NEPP11 is a cyclopentenone prostaglandin analogue. NEPP11 can inhibit glutamate-induced HT22 cell death in mouse hippocampus and prevent manganese-induced apoptosis in PC12 cells. NEPP11 can activate Nrf2 and maintain MEK1/2 and ERK1/2 activity by inhibiting c-Raf downregulation. NEPP11 exerts a neuroprotective effect in a mouse model of focal cerebral ischemia caused by permanent middle cerebral artery occlusion.
    NEPP11
  • HY-120281
    ST-168
    		Inhibitor
    ST-168 is an orally active MEK/PI3K inhibitor with an IC50 of 182 nM against MEK1 and IC50 values ​​of 69.2, 41.7, 1482 and 2293 nM against PI3Kα, PI3Kδ, PI3Kβ and PI3Kγ respectively. ST-168 completely inhibits the phosphorylation of ERK1/2 and AKT and induces cancer cell death in a 3D tumor sphere model. ST-168 demonstrates significant antitumor effects in the A375 melanoma mouse model. ST-168 improves the ocular toxicity profile of MEK inhibitors, showing lower caspase activation levels, indicating reduced apoptosis induction. ST-168 can be used in melanoma research.
    ST-168
  • HY-12447
    SMK-17
    		Inhibitor
    SMK-17 is a selective, non-ATP-competitive MEK1/MEK2 inhibitor with IC50s of 62 nM and 56 nM, respectively. SMK-17 binds to the allosteric pocket of MEK1/2. SMK-17 induces apoptosis in tumor cell lines harboring β-catenin mutations.
    SMK-17
  • HY-RS08038
    Map2k2 Rat Pre-designed siRNA Set A
    		Inhibitor

    Map2k2 Rat Pre-designed siRNA Set A contains three designed siRNAs for Map2k2 gene (Rat), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Map2k2 Rat Pre-designed siRNA Set A
  • HY-10508
    (R)-PD 0325901CL
    		Inhibitor
    (R)-PD 0325901CL is an isomer of PD 0325901CL. PD 0325901CL is a selective inhibitor of mitogen-activated protein kinase kinase (MEK) involved in cancer research. PD 0325901CL inhibits the growth of cancer cells in vitro and in vivo.
    (R)-PD 0325901CL
  • HY-12482
    X-370
    		Inhibitor
    X-370 is a PI3Kδ inhibitor (IC50 = 7 nM). X-370 inhibits the survival of leukemia cells, inducing G1 arrest and apoptosis. X-370 blocks PDK1 binding and phosphorylation of MEK1/2, eliminating Akt and Erk1/2 signaling. X-370 can be used in research on B-cell acute lymphoblastic leukemia (B-ALL).
    X-370
  • HY-RS08042
    Map2k5 Mouse Pre-designed siRNA Set A
    		Inhibitor

    Map2k5 Mouse Pre-designed siRNA Set A contains three designed siRNAs for Map2k5 gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Map2k5 Mouse Pre-designed siRNA Set A
  • HY-118626
    PD-254552
    		Inhibitor
    PD-254552 is a MEK inhibitor. PD-254552 exhibits hepatotoxicity and gastrointestinal toxicity in mice.
    PD-254552
  • HY-RS08041
    MAP2K5 Human Pre-designed siRNA Set A
    		Inhibitor

    MAP2K5 Human Pre-designed siRNA Set A contains three designed siRNAs for MAP2K5 gene (Human), as well as a negative control, a positive control, and a FAM-labeled negative control.
    MAP2K5 Human Pre-designed siRNA Set A
  • HY-B0185BR
    Lidocaine hydrochloride hydrate (Standard)
    		Inhibitor
    Lidocaine (hydrochloride hydrate) (Standard) is the analytical standard of Lidocaine (hydrochloride hydrate). This product is intended for research and analytical applications. Lidocaine (Lignocaine) hydrochloride hydrate inhibits sodium channels involving complex voltage and using dependence. Lidocaine hydrochloride hydrate 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 hydrate is an amide derivative and has potential for the research of ventricular arrhythmia.
    Lidocaine hydrochloride hydrate (Standard)
  • HY-137881
    MEK-IN-4
    		Inhibitor
    MEK-IN-4 is a MEK inhibitor. MEK-IN-4 can be used for the research of inflammatory disorders and cancers.
    MEK-IN-4
  • HY-10999S2
    Trametinib-13C,d3
    		Inhibitor
    Trametinib-13C,d3 is the 13C- and deuterium labeled Trametinib. 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-<sup>13</sup>C,d<sub>3</sub>
  • HY-RS08034
    Map2k1 Mouse Pre-designed siRNA Set A
    		Inhibitor

    Map2k1 Mouse Pre-designed siRNA Set A contains three designed siRNAs for Map2k1 gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Map2k1 Mouse Pre-designed siRNA Set A
  • HY-P10832
    ATWLPPRAANLLMAAS
    		Inhibitor
    ATWLPPRAANLLMAAS is a chimeric peptide with anti-angiogenic and potent anti-tumor effects. ATWLPPRAANLLMAAS can inhibit the proliferation, viability, migration, and invasion of human hepatocellular carcinoma cells, and induce apoptosis..
    ATWLPPRAANLLMAAS
  • HY-E70745
    MEK1 P124L Recombinant Human Active Protein Kinase
    MEK1 is the MAP/ERK kinase. The MEK1 kinase directly phosphorylates ERK2, after the activation loop of MEK1 is itself phosphorylated by Raf. MEK1 P124L is a mutant of MEK1. MEK1 P124L Recombinant Human Active Protein Kinase is a recombinant MEK1 P124L protein that can be used to study MEK1 P124L-related functions.
    MEK1 P124L Recombinant Human Active Protein Kinase
  • HY-50295A
    CI-1040 hydrochloride
    		Inhibitor
    CI-1040 (PD 184352) hydrochloride is an orally active, highly specific inhibitor of MEK, with an IC50 of 17 nM for MEK1.
    CI-1040 hydrochloride
  • HY-P992268
    Anti-MP1 Antibody
    Anti-MP1 Antibody is a monoclonal antibody that targets MP1. Anti-MP1 Antibody can be used in ELISA, FACS, and functional assays. For isotype controls of Anti-MP1 Antibody, please refer to Human IgG1 kappa, Isotype Control (HY-P99001).
    Anti-MP1 Antibody
Cat. No. Product Name / Synonyms Application Reactivity
MEK Isoform Comparison

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