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-149718
    Antitumor agent-123
    Inhibitor
    Antitumor agent-123 (Copmound 4d) effectively inhibits multiple kinase targets with anti-cancer effects, including JAK2, JAK3, HDAC1 and HDAC6, with IC50 values of 34.6 and 2.6 μM for JAK2 and JAK3, respectively. Antitumor agent-123 exhibits moderate activity in solid tumor models.
    Antitumor agent-123
  • HY-111077
    INCB16562
    Inhibitor
    INCB16562 is an orally active and selective inhibitor against JAK1/2 markedly selective over JAK3. INCB16562 potently inhibits interleukin-6 (IL-6)-induced phosphorylation of STAT3. Additionally, INCB16562 inhibits the proliferation and survival of myeloma cells dependent on IL-6 for growth, as well as the IL-6–induced growth of primary bone marrow-derived plasma cells. INCB16562 antagonizes the growth of myeloma xenografts in mice with antitumor activity. INCB16562 is promising for research of multiple myeloma.
    INCB16562
  • HY-161621
    JAK-IN-37
    Inhibitor
    JAK-IN-37 (Compound WU4) is a JAK inhibitor, with IC50 values of 0.52, 2.26, 84 and 1.09 nM for JAK1, JAK2, JAK3 and JAK4, respectively. JAK-IN-37 can be used for the research of allogeneic hematopoietic cell transplantation (allo-HCT).
    JAK-IN-37
  • HY-P10840
    Tkip
    Inhibitor
    Tkip is a JAK2 specific inhibitor. Tkip can bind the JAK2 autophosphorylation site, inhibit the JAK2 autophosphorylation and the phosphorylation of the IFN-γ receptor subunit IFNGR-1. Tkip inhibits the antiviral activity of IFN-γ and the expression of MHC Class I molecules. Tkip can be used to study the IFN-γ signaling pathway.
    Tkip
  • HY-RS07019
    Jak2 Mouse Pre-designed siRNA Set A
    Inhibitor

    Jak2 Mouse Pre-designed siRNA Set A contains three designed siRNAs for Jak2 gene (Mouse), as well as a negative control, a positive control, and a FAM-labeled negative control.

    Jak2 Mouse Pre-designed siRNA Set A
    Jak2 Mouse Pre-designed siRNA Set A
  • HY-125051
    SG3-179
    Inhibitor
    SG3-179 is a potent inhibitor against the BET bromodomain proteins. SG3-179 is also a JAK2 and FLT3 inhibitor. SG3-179 causes a rapid reduction in HOXB13 protein expression. SG3-179 is promising for research of multiple myeloma (MM1.S).
    SG3-179
  • HY-18200B
    Atopaxar hydrobromide
    Inhibitor
    Atopaxar (E5555) hydrobromide is a potent, orally active, selective and reversible thrombin receptor protease-activated receptor-1 (PAR-1) antagonist. Atopaxar hydrobromide, an antiplatelet agent, interferes with platelet signaling. Atopaxar hydrobromide can be used for the research of atherothrombotic disease.
    Atopaxar hydrobromide
  • HY-157121
    JAK-IN-34
    Inhibitor
    JAK-IN-34 (compound 11n) is a potent against of JAKs with IC50 values of 0.40, 0.83, 2.10, 1.95 nM target JAK1, JAK2, JAK3, TYK2, respectively. JAK-IN-34 reduces joint swelling with good safety.
    JAK-IN-34
  • HY-145829
    Tofacitinib Prodrug-1
    Inhibitor
    Tofacitinib precursor-1 is an effective and oral active precursor to mitigate the systemic adverse effects of Tofacitinib. Tofacitinib precursor-1 can effectively attenuate the oxazolone-induced colitis in mice model with low toxicity. Tofacitinib precursor-1 is a potential drug candidate for the research of ulcerative colitis.
    Tofacitinib Prodrug-1
  • HY-158439
    anti-TNBC agent-7
    Modulator
    anti-TNBC agent-7 (Compound 13c) possesses anticancer activity, serving as a molecular probe to recognize and regulate the signal transduction of the USP21/JAK2/STAT3 axis, exhibiting nanomolar-level cytotoxicity against MDA-MB-231 and HCC-1806 cancer cells, effectively combating triple-negative breast cancer (TNBC).
    anti-TNBC agent-7
  • HY-143716
    JAK3/BTK-IN-1
    Inhibitor
    JAK3/BTK-IN-1 is a potent inhibitor of JAK3/BTK. BTK and JAK3 are two important targets for autoimmune diseases. Simultaneous inhibition of the BTK/JAK3 signalling pathway exhibits synergistic effects. JAK3/BTK-IN-1 has the potential for the research of JAK3 kinase and/or BTK-related diseases (extracted from patent WO2021147952A1, compound 002).
    JAK3/BTK-IN-1
  • HY-163305
    Tyk2-IN-17
    Inhibitor
    Tyk2-IN-17 (compound 185) is a potent TYK2 inhibitor.
    Tyk2-IN-17
  • HY-N0918R
    Desmethoxyyangonin (Standard)
    Inhibitor
    Desmethoxyyangonin (Standard) is one of the six major kavalactones found in the Piper methysticum (kava) plant. Desmethoxyyangonin (Standard) is a selective inhibitor of monoamine oxidase-B (MAO-B) (IC50: 0.123  µM). Desmethoxyyangonin (Standard) exerts anti-inflammatory effects by inhibiting Jak2/STAT3 and IKK signaling pathways. Desmethoxyyangonin (Standard) induces CYP3A23 expression and leads to skeletal muscle relaxation.
    Desmethoxyyangonin (Standard)
  • HY-164455
    AJI-214
    Inhibitor
    AJI-214 is a dual-target inhibitor of Aurora kinase A and JAK2. AJI-214 directly blocks Aurora kinase A to inhibit T cell mitotic progression and cell polarity, and inhibits JAK2 activation to inhibit STAT3 phosphorylation, thereby reducing the differentiation of TH1 and TH17 cells. AJI-214 can be used in studies on regulating immune responses and preventing graft-versus-host disease (GVHD).
    AJI-214
  • HY-162862
    JAK-IN-38
    Inducer
    JAK-IN-38 (Compound 1) is a JAK inhibitor, with IC50s of 0.03, 0.06, 0.12, 0.44 μM for Tyk2, JAK3, JAK2, JAK1 respectively. JAK-IN-38 is a collagen VII (C7) inducer and has anti-inflammatory activity. JAK-IN-38 can upregulate the expression of COL7A1 mRNA in donor-derived keratinocytes and works together with Gentamicin (HY-A0276A) to boost overall C7 levels.
    JAK-IN-38
  • HY-162862
    JAK-IN-38
    Inhibitor
    JAK-IN-38 (Compound 1) is a JAK inhibitor, with IC50s of 0.03, 0.06, 0.12, 0.44 μM for Tyk2, JAK3, JAK2, JAK1 respectively. JAK-IN-38 is a collagen VII (C7) inducer and has anti-inflammatory activity. JAK-IN-38 can upregulate the expression of COL7A1 mRNA in donor-derived keratinocytes and works together with Gentamicin (HY-A0276A) to boost overall C7 levels.
    JAK-IN-38
  • HY-163314S
    Tyk2-IN-18-d3
    Inhibitor
    Tyk2-IN-18-d3 (Compound 18) is a Tyk2 inhibitor with an IC50 value of < 30 nM for both IL-23 and IFNα. Tyk2-IN-18-d3 can be used for research on autoimmune diseases.
    Tyk2-IN-18-d<sub>3</sub>
  • HY-167884
    PF-1367550
    Inhibitor
    PF-1367550 is a pan-JAK inhibitor. PF-1367550 can decrease the levels of release of CXCL9, CXCL10 and CXCL11 from primary airway epithelial cells.
    PF-1367550
  • HY-107429R
    Abrocitinib (Standard)
    Inhibitor
    Abrocitinib (Standard) is the analytical standard of Abrocitinib. This product is intended for research and analytical applications. Abrocitinib (PF-04965842) is a potent, orally active and selective JAK1 inhibitor, with IC50s of 29 and 803 nM for JAK1 and JAK2, respectively. Abrocitinib (PF-04965842) exhibits less active effect on TYK2 (IC50, 1.253 μM), and inhibits phosphorylation of STAT1, STAT3 and STAT5 after stimulation. Effective in autoimmune disease.
    Abrocitinib (Standard)
  • HY-10409AR
    Fedratinib hydrochloride hydrate (Standard)
    Inhibitor
    Fedratinib (hydrochloride hydrate) (Standard) is the analytical standard of Fedratinib (hydrochloride hydrate). This product is intended for research and analytical applications. Fedratinib hydrochloride hydrate (TG-101348 hydrochloride hydrate) is a potent, selective, ATP-competitive and orally active JAK2 inhibitor with IC50s of 3 nM for both JAK2 and JAK2V617F kinase. Fedratinib hydrochloride hydrate shows 35- and 334-fold selectivity over JAK1 and JAK3, respectively. Fedratinib hydrochloride hydrate induces cancer cell apoptosis and has the potential for myeloproliferative disorders research.
    Fedratinib hydrochloride hydrate (Standard)
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity

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