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

JAK

Janus kinase

JAK

Related Products

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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.

JAK Isoform Specific Products:

JAK Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-40354S1
    Tofacitinib-13C3,15N
    		Inhibitor 99.57%
    Tofacitinib-13C3,15N (Tasocitinib-13C3,15N) is 13C and 15N labeled Tofacitinib. Tofacitinib is an orally available JAK3/2/1 inhibitor with IC50s of 1, 20, and 112 nM, respectively.
    Tofacitinib-<sup>13</sup>C<sub>3</sub>,<sup>15</sup>N
  • HY-143720
    JAK3/BTK-IN-5
    		Inhibitor
    JAK3/BTK-IN-5 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-5 has the potential for the research of JAK3 kinase and/or BTK-related diseases (extracted from patent WO2021147953A1, example 35)
    JAK3/BTK-IN-5
  • HY-181663
    PJ27
    		Inhibitor
    PJ27 is a dual PD-1/PD-L1/JAK1 inhibitor, with an IC50 of 414 nM against PD-1/PD-L1, an IC50 of 786 nM against JAK1, a Ka of 294 nM for human PD-1/PD-L1, and a Ka of 473 nM for murine PD-1/PD-L1. PJ27 promotes the infiltration of CD3+CD8+ and CD3+CD4+ cells into the tumor microenvironment and exerts a significant immune activation effect. PJ27 inhibits tumor growth in a dose-dependent manner in the LLC lung cancer mouse model. PJ27 is applicable to relevant research on lung cancer.
    PJ27
  • HY-155746
    JAK2-IN-9
    		Inhibitor
    JAK2-IN-9 (Compound A8) is a selective JAK2 inhibitor (IC50: 5 nM). JAK2-IN-9 inhibits the phosphorylation of JAK2, STAT3, and STAT5. JAK2-IN-9 has metabolic stabilities. JAK2-IN-9 induces apoptosis. JAK2-IN-9 can be used for research of myeloproliferative neoplasms (MPNs).
    JAK2-IN-9
  • HY-18293
    NSC 33994
    		Inhibitor
    NSC 33994 (G6) is a selective JAK2 inhibitor, with an IC50 of 60 nM.
    NSC 33994
  • HY-18949
    JI6
    		Inhibitor
    JI6 is a potent, selective and orally active FLT3 inhibitor, with IC50s of ～40, 8, and 4 nM for FLT3-WT, FLT3-D835Y, and FLT3-D835H, respectively. JI6 also inhibits JAK3 and c-Kit, with IC50s of ～250 and ～500 nM, respectively. JI6 can be used for the research of acute myeloid leukemia.
    JI6
  • HY-174999
    JAK3-IN-18
    		Inhibitor
    JAK3-IN-18 is an orally active JAK3 and TEC inhibitor, with IC50s of 0.5391 nM and 12.40 nM, respectively. JAK3-IN-18 demonstrates outstanding selectivity over AK1, AK2, and TYk2, with selectivity ratios exceeding 10,000-fold. JAK3-IN-18 demonstrates excellent therapeutic efficacy in the experimental autoimmune encephalomyelitis (EAE) mouse model. JAK3-IN-18 can be used for the study of multiple sclerosis.
    JAK3-IN-18
  • HY-46262
    JAK-IN-15
    		Inhibitor
    JAK-IN-15 is a JAK inhibitor. WO2016119700A1 (Compound 15).
    JAK-IN-15
  • HY-164111
    JNK-IN-17
    		Inhibitor
    JNK-IN-17 (Compound 9J) is a selective and potent JNK inhibitor with IC50 values of 0.039, 0.079 μM for JNK1 and JNK3. JNK-IN-17 can inhibit c-Jun phosphorylation with an IC50 of 0.082 μM in Streptozotocin (HY-13753)-infuced INS-1 pancreatic islet β cells. JNK-IN-17 shows inhibition rate ≤ 33% on the four main P450 subtypes (2C9, 2D6, 3A4, 1A2) in human liver microsomes, indicating a relatively low risk of drug interactions. JNK-IN-17 can be used for researches of neurological and metabolic disease, such as Parkinson's disease.
    JNK-IN-17
  • HY-144032
    Tyk2-IN-9
    		Inhibitor
    Tyk2-IN-9 (Compound 26) is a selective Tyk-2 inhibitor with IC50s of 0.076 and 1.8 nM for TYK2-JH2 and JAK1-JH2, respectively. Tyk2-IN-9 can be used for the research of inflammatory or autoimmune disease.
    Tyk2-IN-9
  • HY-168339
    Tyk2-IN-22
    		Inhibitor
    Tyk2-IN-22 (Compound A8) is a selective inhibitor for tyrosine kinase 2 (Tyk2), that it inhibits Tyk2, JAK1, and JAK3 with IC50s of 9.7, 148.6, and 883.3 nM, respectively. Tyk2-IN-22 inhibits the downstream STAT5 phosphorylation.
    Tyk2-IN-22
  • HY-176527
    (Rac)-TUL01101
    		Inhibitor
    (Rac)-TUL01101 (Compound I) is a selective JAK kinase inhibitor. (Rac)-TUL01101 can be used in the research of various diseases such as rheumatoid arthritis, atopic dermatitis, and alopecia areata.
    (Rac)-TUL01101
  • HY-161019
    JAK1/TYK2-IN-4
    		Inhibitor
    JAK1/TYK2-IN-4 is a dual inhibitor of JAK and TYK2, with IC50s of 39 nM and 21 nM, respectively. JAK1/TYK2-IN-4 has oral bioavailability.
    JAK1/TYK2-IN-4
  • HY-170723
    JAK-IN-39
    		Inhibitor
    JAK-IN-39 (compound 11) is a JAK inhibitor that suppresses JAK1, JAK2, JAK3 with IC50 values of 0.05, 1.18, and 0.03 nM, respectively. JAK-IN-39 can inhibit the viability of TF-1 cells and also suppress the production of lymphocyte TNFα and INFγ in vitro.
    JAK-IN-39
  • HY-168971
    Paeoniflorin-6′-O-benzene sulfonate
    		Inhibitor
    Paeoniflorin-6′-O-benzene sulfonate (CP-25) is the inhibitor for G protein-coupled receptor kinase 2 (GRK2) that inhibits the translocation of GRK2 to the cell membrane, inhibits JAK1/STAT3 signaling pathway. Paeoniflorin-6′-O-benzene sulfonate inhibits IL-17A/CXCL2-induced proliferation of HaCaT. Paeoniflorin-6′-O-benzene sulfonate reduces the levels of inflammatory factors and chemokines such as IL-17A, IL-17F, IFN-γ, TNF-α, IL-22, IL-23, CXCL2, CXCL3 and CXCL9, alleviates Imiquimod (HY-B0180)-induced psoriasis in mouse model.
    Paeoniflorin-6′-O-benzene sulfonate
  • HY-169984S
    Tyk2-IN-22-d3
    		Inhibitor
    Tyk2-IN-22-d3 (Compound 1) is the deuterated analog of Tyk2-IN-22 (HY-168339). Tyk2-IN-22 (Compound A8) is a selective inhibitor for tyrosine kinase 2 (Tyk2), that it inhibits Tyk2, JAK1, and JAK3 with IC50s of 9.7, 148.6, and 883.3 nM, respectively. Tyk2-IN-22 inhibits the downstream STAT5 phosphorylation.
    Tyk2-IN-22-d<sub>3</sub>
  • HY-N2515R
    Ginsenoside Rk1 (Standard)
    		Inhibitor
    Ginsenoside Rk1 (Standard) is the analytical standard of Ginsenoside Rk1. This product is intended for research and analytical applications. Ginsenoside Rk1 is a unique component created by processing the ginseng plant (mainly Sung Ginseng, SG) at high temperatures. Ginsenoside Rk1 has anti-inflammatory effect, suppresses the activation of Jak2/Stat3 signaling pathway and NF-κB. Ginsenoside Rk1 has anti-tumor effect, antiplatelet aggregation activities, anti-insulin resistance, nephroprotective effect, antimicrobial effect, cognitive function enhancement, lipid accumulation reduction and prevents osteoporosis. Ginsenoside Rk1 induces cell apoptosis by triggering intracellular reactive oxygen species (ROS) generation and blocking PI3K/Akt pathway.
    Ginsenoside Rk1 (Standard)
  • HY-172596
    TYK2 activator-1
    		Inhibitor
    TYK2 activator-1 (16b) is a TYK2 activator with anEC50 of 1.78 μM. TYK2 activator-1 inhibits JAK2 and JAK3 with the IC50 values of 6.8 and 6.3 μM, respectively.
    TYK2 activator-1
  • HY-144075
    JAK-IN-19
    		Inhibitor
    JAK-IN-19 is a potent JAK inhibitor (PBMC IFNγ pIC50=7.2 and HLF Eotaxin pIC50=7.7). JAK-IN-19 has good retentive properties in the lung via mitigating being metabolized by Aldehyde Oxidase (AO), with diminished VEGFR2 selectivity (VEGFR2 pIC50=7.0, Aurora B pIC50=5.8).
    JAK-IN-19
  • HY-149284
    JAK/HDAC-IN-3
    		Inhibitor
    JAK/HDAC-IN-3 (13a) is a dual JAK and HDAC inhibitor, with IC50 values of 25.36 nM, 0.2 μM and 0.43 μM for JAK2, HDAC and HDAC1, respectively.
    JAK/HDAC-IN-3
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity
JAK Isoform Comparison

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