1. Signaling Pathways
  2. Epigenetics
    JAK/STAT Signaling
    Protein Tyrosine Kinase/RTK
    Stem Cell/Wnt
  3. JAK

JAK

Janus kinase

Janus kinase (JAK) is a family of intracellular, nonreceptor tyrosine kinases that transduce cytokine-mediated signals via the JAK-STAT pathway. Since members of the type I and type II cytokine receptor families possess no catalytic kinase activity, they rely on the JAK family of tyrosine kinases to phosphorylate and activate downstream proteins involved in their signal transduction pathways. The receptors exist as paired polypeptides, thus exhibiting two intracellular signal-transducing domains. JAKs associate with a proline-rich region in each intracellular domain, which is adjacent to the cell membrane and called a box1/box2 region. After the receptor associates with its respective cytokine/ligand, it goes through a conformational change, bringing the two JAKs close enough to phosphorylate each other. The JAK autophosphorylation induces a conformational change within itself, enabling it to transduce the intracellular signal by further phosphorylating and activating transcription factors called STATs. The activated STATs dissociate from the receptor and form dimers before translocating to the cell nucleus, where they regulate transcription of selected genes.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-B0072
    Tropisetron
    Inhibitor 99.93%
    Tropisetron is an orally active 5-HT3R antagonist (Ki = 5.3 nM) as well as being a potent and selective α7 nicotinic partial agonist (EC50 = 1.3 μM). Tropisetron prevents phosphorylation and activation of the p38 MAPK. Tropisetron inhibits both IL-2 gene transcription and IL-2 synthesis in stimulated T cells. Tropisetron inhibits the binding to DNA and the transcriptional activity of NFAT and AP-1. Tropisetron is anti-inflammatory and antiemetic. Tropisetron has antitumor and neuroprotective effects. Tropisetron can be studied in research for diseases including hemorrhagic cystitis, chronic joint inflammation, lung cancer and chronic cerebral hypoperfusion.
    Tropisetron
  • HY-146186
    JAK2 JH2 binder-1
    Modulator
    JAK2 JH2 binder-1 (compound 11) is a potent and selective JAK2 JH2 binder, with a Kd of 37.1 nM. JAK2 JH2 binder-1 has the potential for various myeloproliferative neoplasms research.
    JAK2 JH2 binder-1
  • HY-161015
    JAK1-IN-13
    Inhibitor 98.65%
    JAK1-IN-13 (compound 36b) is an orally active, potent and highly selective inhibitor of JAK1 with an IC50 of 0.044 nM. JAK1-IN-13 significantly decreases STAT3 phosphorylation.
    JAK1-IN-13
  • HY-146066
    α7 nAchR-JAK2-STAT3 agonist 1
    Agonist 99.54%
    α7 nAchR-JAK2-STAT3 agonist 1 is a potent α7 nAchR-JAK2-STAT3 agonist, with an IC50 value of 0.32 μM for nitric oxide (NO). α7 nAchR-JAK2-STAT3 agonist 1 effectively suppresses the expression of iNOS, IL-1β, and IL-6 in murine RAW264.7 macrophages. α7 nAchR-JAK2-STAT3 agonist 1 can inhibit LPS-induced NO release, NF-κB activation and cytokine production. α7 nAchR-JAK2-STAT3 can be used for researching sepsis.
    α7 nAchR-JAK2-STAT3 agonist 1
  • HY-102046
    FM-381
    Inhibitor 99.58%
    FM-381 is a potent covalent reversible inhibitor of JAK3 targeting the unique Cys909. FM-381 has an IC50 of 127 pM for JAK3, with 410, 2700 and 3600-fold selectivity over JAK1, JAK2 and TYK2, respectively.
    FM-381
  • HY-14722A
    NVP-BSK805 dihydrochloride
    Inhibitor 99.36%
    NVP-BSK805 dihydrochloride is an ATP-competitive JAK2 inhibitor, with IC50s of 0.48 nM, 31.63 nM, 18.68 nM, and 10.76 nM for JAK2 JH1 (JAK homology 1), JAK1 JH1, JAK3 JH1, and TYK2 JH1, respectively.
    NVP-BSK805 dihydrochloride
  • HY-N6850
    Calenduloside E
    Inhibitor 99.07%
    Calenduloside E is a pentacyclic triterpenoid saponin that can be extracted from the bark and roots of Aralia ovata, and has anti-inflammatory and anti-apoptotic activities. Calenduloside E alleviates atherosclerosis by regulating macrophage polarization, improves mitochondrial function by regulating the AMPK-SIRT3 pathway, and alleviates acute liver injury. In addition, Calenduloside E promotes the interaction between L-type calcium channels and Bcl-2 related apoptosis genes, inhibits calcium overload, and alleviates myocardial ischemia/reperfusion injury. Calenduloside E also improves non-alcoholic fatty liver disease by regulating heat shock-dependent pathways, and inhibits ROS mediated JAK1-STAT3 pathways to reduce cellular inflammatory responses.
    Calenduloside E
  • HY-112708A
    Brepocitinib P-Tosylate
    Inhibitor 99.98%
    Brepocitinib (PF-06700841) P-Tosylate is a potent dual Janus kinase 1 (JAK1) and TYK2 inhibitor with IC50s of 17 nM and 23 nM, respectively. Brepocitinib P-Tosylate also inhibits JAK2 and JAK3 with IC50s of 77 nM and 6.49 μM, respectively.
    Brepocitinib P-Tosylate
  • HY-101976
    JAK3-IN-6
    Inhibitor 99.90%
    JAK3-IN-6 is a potent, selective irreversible Janus Associated Kinase 3 (JAK3) inhibitor, with an IC50 of 0.15 nM.
    JAK3-IN-6
  • HY-11067
    WHI-P97
    Inhibitor 99.70%
    WHI-P97 is a potent and selective JAK-3 inhibitor. WHI-P97 is effective in preventing the development allergic asthma in vivo.
    WHI-P97
  • HY-15166A
    (E/Z)-Zotiraciclib hydrochloride
    Inhibitor 99.90%
    (E/Z)-Zotiraciclib ((E/Z)-TG02) is an orally active inhibitor of CDK2, JAK2 and FLT3 with IC50s of 13, 73 and 56 nM, respectively. (E/Z)-Zotiraciclib effectively inhibits the proliferation of cancer cells, it can be used for the research of cancer.
    (E/Z)-Zotiraciclib hydrochloride
  • HY-101762
    TyK2-IN-2
    Inhibitor 98.64%
    TyK2-IN-2 (Compoud 18) is a potent and selective TYK2 inhibitor with IC50s of 7 nM, 0.1 μM and 0.05 μM for TYK2 JH2, IL-23 and IFNα, respectively. TyK2-IN-2 also inhibits phosphodiesterase 4 (PDE4) with an IC50 of 62 nM. TyK2-IN-2 can be used for the research of inflammatory and autoimmune diseases.
    TyK2-IN-2
  • 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-50856S
    Deuruxolitinib
    Inhibitor 99.18%
    Deuruxolitinib, a deuterated Ruxolitinib (HY-50856), is an orally active JAK1 and JAK2 inhibitor. Deuruxolitinib demonstrates significant hair regrowth effects. Deuruxolitinib can be used for the research of alopecia areata.
    Deuruxolitinib
  • HY-151262
    JAK-IN-23
    Inhibitor 98.90%
    JAK-IN-23 is an orally active double inhibitor of JAK/STAT and NF-κB. JAK-IN-23 can inhibit JAK1/2/3 with IC50 values of 8.9 nM, 15 nM and 46.2 nM, respectively. JAK-IN-23 has potent inhibitory activities against interferon-stimulated genes (ISG) and NF-κB pathways with IC50 values of 3.3 nM and 150.7 nM, respectively. JAK-IN-23 has great anti-inflammatory that decreases the release of various proinflammatory factors. JAK-IN-23 can be used for the research of inflammatory bowel disease (IBD).
    JAK-IN-23
  • HY-111745
    Tyk2-IN-5
    Inhibitor 99.35%
    Tyk2-IN-5 (compound 6) is a potent, selective and orally active tyrosine kinase 2 (Tyk2) inhibitor that acts on the JH2 structural domain. Tyk2-IN-5 shows a Ki value of 0.086 nM for Tyk2 JH2 and an IC50 value of 25 nM for IFNα. Tyk2-IN-5 efficiently inhibits the production of IFNγ in a pharmacodynamic rat model and is fully efficacious in a rat model of arthritis.
    Tyk2-IN-5
  • HY-109179
    Itacnosertib
    Inhibitor 99.06%
    Itacnosertib (TP-0184) is the inhibitor for FLT3, ACVR1 (ALK2, IC50=8 nM) and JAK2 (IC50=8540 nM). Itacnosertib exhibits anti-leukemic activity.
    Itacnosertib
  • HY-115452
    G5-7
    Inhibitor 99.55%
    G5-7, an orally active and allosteric JAK2 inhibitor, selectively inhibits JAK2 mediated phosphorylation and activation of EGFR (Tyr1068) and STAT3 by binding to JAK2. G5-7 induces cell cycle arrest, apoptosis and possesses antiangiogenic effect. G5-7 has the potential for glioma study.
    G5-7
  • HY-13895
    WHI-P154
    Inhibitor 98.77%
    WHI-P154 is a potent EGFR inhibitor, and also modestly blocks JAK3, with IC50s of 4 nM and 1.8 μM, respectively.
    WHI-P154
  • HY-100538
    DTP3
    Inhibitor 98.45%
    DTP3 TFA is a potent and selective GADD45β/MKK7 inhibitor. DTP3 TFA targets an essential, cancer-selective cell-survival module downstream of the NF-κB pathway.
    DTP3
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity

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