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-50856
    Ruxolitinib
    Inhibitor 99.99%
    Ruxolitinib (INCB18424) is a potent and selective JAK1/2 inhibitor with IC50s of 3.3 nM and 2.8 nM in cell-free assays, and has 130-fold selectivity for JAK1/2 over JAK3. Ruxolitinib induces autophagy and kills tumor cells through toxic mitophagy.
    Ruxolitinib
  • HY-40354
    Tofacitinib
    Inhibitor 99.99%
    Tofacitinib is an orally available JAK3/2/1 inhibitor with IC50s of 1, 20, and 112 nM, respectively.
    Tofacitinib
  • HY-117287
    Deucravacitinib
    Inhibitor 99.87%
    Deucravacitinib (BMS-986165) is a highly selective, orally bioavailable allosteric TYK2 inhibitor for the treatment of autoimmune diseases, which selectively binds to TYK2 pseudokinase (JH2) domain (IC50=1.0 nM) and blocks receptor-mediated Tyk2 activation by stabilizing the regulatory JH2 domain. Deucravacitinib inhibits IL-12/23 and type I IFN pathways. Deucravacitinib, the FDA's world first de novo deuterium, is available for study in moderate to severe plaque psoriasis.
    Deucravacitinib
  • HY-15315
    Baricitinib
    Inhibitor 99.97%
    Baricitinib (LY3009104; INCB028050) is a selective and orally bioavailable JAK1 and JAK2 inhibitor with IC50s of 5.9 nM and 5.7 nM, respectively.
    Baricitinib
  • HY-19569
    Upadacitinib
    Inhibitor 99.98%
    Upadacitinib (ABT-494) is a potent, orally active and selective Janus kinase 1 (JAK1) inhibitor (IC50=43 nM). Upadacitinib (ABT-494) displays approximately 74 fold selective for JAK1 over JAK2 (200 nM) in cellular assays dependent on specific, relevant cytokines. Upadacitinib (ABT-494) can be used for several autoimmune disorders research.
    Upadacitinib
  • HY-N7452
    Coumermycin A1
    Activator ≥98.0%
    Coumermycin A1 is a JAK2 signal activator. Coumermycin A1 inhibits DNA Gyrase which thereby inhibits cell division in bacteria. Coumermycin A1 shows anti-orthopoxvirus activity.
    Coumermycin A1
  • HY-19569R
    Upadacitinib (Standard)
    Inhibitor 99.73%
    Upadacitinib (Standard) is the analytical standard of Upadacitinib. Upadacitinib (ABT-494) is a potent, orally active and selective Janus kinase 1 (JAK1) inhibitor (IC50=43 nM). Upadacitinib (ABT-494) displays approximately 74 fold selective for JAK1 over JAK2 (200 nM) in cellular assays dependent on specific, relevant cytokines. Upadacitinib (ABT-494) can be used for several autoimmune disorders research .
    Upadacitinib (Standard)
  • HY-109179A
    Itacnosertib (hydrocholide)
    Inhibitor 98.98%
    Itacnosertib hydrocholide is an inhibitor of JAK2, ACVR1 (ALK2) and ALK5.
    Itacnosertib (hydrocholide)
  • HY-12000
    AG490
    Inhibitor 99.97%
    AG490 (Tyrphostin AG490) is a tyrosine kinase inhibitor that inhibits EGFR, Stat-3 and JAK2/3.
    AG490
  • HY-10409
    Fedratinib
    Inhibitor 99.87%
    Fedratinib (TG-101348) is a potent, selective, ATP-competitive and orally active JAK2 inhibitor with IC50s of 3 nM for both JAK2 and JAK2V617F kinase. Fedratinib shows 35- and 334-fold selectivity over JAK1 and JAK3, respectively. Fedratinib induces cancer cell apoptosis and has the potential for myeloproliferative disorders research.
    Fedratinib
  • HY-50858
    Ruxolitinib phosphate
    Inhibitor 99.98%
    Ruxolitinib phosphate (INCB018424 phosphate) is a potent JAK1/2 inhibitor with IC50s of 3.3 nM/2.8 nM, respectively, showing more than 130-fold selectivity over JAK3.
    Ruxolitinib phosphate
  • HY-100754
    Ritlecitinib
    Inhibitor 99.98%
    Ritlecitinib (PF-06651600) is an orally active and selective JAK3 inhibitor with an IC50 of 33.1 nM.
    Ritlecitinib
  • HY-16379
    Pacritinib
    Inhibitor 99.93%
    Pacritinib (SB1518) is a potent inhibitor of both wild-type JAK2 (IC50=23 nM) and JAK2V617F mutant (IC50=19 nM). Pacritinib also inhibits FLT3 (IC50=22 nM) and its mutant FLT3D835Y (IC50=6 nM).
    Pacritinib
  • HY-15312
    WP1066
    Inhibitor 99.77%
    WP1066 is an inhibitor of JAK2 and STAT3, and also shows effect on STAT5 and ERK1/2, without affecting JAK1 and JAK3.
    WP1066
  • HY-40354A
    Tofacitinib citrate
    Inhibitor 99.98%
    Tofacitinib citrate is an orally available JAK1/2/3 inhibitor with IC50s of 1, 20, and 112 nM, respectively. Tofacitinib citrate has antibacterial, antifungal and antiviral activities.
    Tofacitinib citrate
  • HY-10961
    Momelotinib
    Inhibitor 99.37%
    Momelotinib (CYT387) is an ATP-competitive inhibitor of JAK1/JAK2 with IC50a of 11 nM and 18 nM,respectively. CYT387 shows much less activity against JAK3.
    Momelotinib
  • HY-148748
    Butyzamide
    Activator 99.62%
    Butyzamide is an orally active activator of Mpl, a thrombopoietin (TPO) receptor. Butyzamide increases the phosphorylation level of JAK2, STAT3, STAT5 and MAPK. Butyzamide increases the level of human platelets in mouse xenotransplantation assay.
    Butyzamide
  • HY-18300
    Filgotinib
    Inhibitor 99.68%
    Filgotinib (GLPG0634) is a selective and orally active JAK1 inhibitor with IC50 of 10 nM, 28 nM, 810 nM, and 116 nM for JAK1, JAK2, JAK3, and TYK2, respectively.
    Filgotinib
  • HY-W063968
    RO8191
    Activator ≥99.0%
    RO8191 (CDM-3008), an imidazonaphthyridine compound, is an orally active and potent interferon (IFN) receptor agonist. RO8191 directly binds to IFNα/β receptor 2 (IFNAR2) and activates IFN-stimulated genes (ISGs) expression and JAK/STAT phosphorylation. RO8191 shows antiviral activity against both HCV and EMCV with an IC50 of 200 nM for HCV replicon. RO8191 is a cccDNA modulator (CDM) through interferon-like activity and has anti-HBV activity.
    RO8191
  • HY-10193
    AZD-1480
    Inhibitor 99.91%
    AZD-1480 is an ATP-competitive inhibitor of JAK1 and JAK2 with IC50s of 1.3 nM and <0.4 nM, respectively.
    AZD-1480
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity

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