1. Signaling Pathways
  2. Protein Tyrosine Kinase/RTK
  3. Syk

Syk

Spleen tyrosine kinase

Syk (Spleen tyrosine kinase) is a cytosolic non-receptor protein tyrosine kinase (PTK) that is expressed at high levels, both in hematopoietic cells (such as mast cells, B lymphocytes, T lymphocytes, neutrophils, dendritic cells, and macrophages) and in non-hematopoietic cells.

Syk mediates key signal transduction pathways following the activation of immune cell receptors. Syk associates with different receptors on the surface of various cells such as B cells, mast cells, monocytes, macrophages, and neutrophils, and even osteoclasts and breast cancer cells. Following the engagement of these receptors with their ligands, SYK is activated and orchestrates diverse cellular responses, including cytokine production (in T cells and monocytes) and phagocytosis (in macrophages).

Syk Related Products (90):

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-P2505
    Syk Kinase Peptide Substrate
    Syk Kinase Peptide Substrate is a Syk kinase peptide substrate.
    Syk Kinase Peptide Substrate
  • HY-120214
    TAS05567
    Inhibitor
    TAS05567 is a potent, highly selective, ATP-competitive and orally active Syk inhibitor with an IC50 of 0.37 nM. In a panel of 192 kinases, TAS05567 only shows >70% inhibition of Syk and 4 other kinases (FLT3, JAK2, KDR and RET with IC50s of 10 nM, 4.8 nM, 600 nM and 29 nM, respectively). TAS05567 can be used for humoral immune-mediated inflammatory conditions such as autoimmune and allergic diseases.
    TAS05567
  • HY-155513
    Syk-IN-8
    Inhibitor
    Syk-IN-8 (compound 19q) is a Syk inhibitor, with antiproliferative activity against multiple hematological tumour cells. Syk-IN-8 inhibits PLCγ2 phosphorylation, can be used for research in blood cancers.
    Syk-IN-8
  • HY-125500
    TOP1362
    Inhibitor
    TOP1362 is a narrow spectrum kinase inhibitor. TOP1362 is a potent inhibitor of P38-α and Syk kinases with Kd values of 26 and 18 nM, respectively and an IC50 of 14 nM in the Src kinase activity assay. TOP1362 potently inhibits P38-α, Src and Syk. TOP1362 can be used in the research of dry eye syndrome.
    TOP1362
  • HY-169630
    DBMB
    Inhibitor
    DBMB is an inhibitor of spleen tyrosine kinase (Syk), capable of significantly inhibiting the activity of Syk kinase. DBMB exhibits anti-inflammatory activity by suppressing the signaling of NF-κB, which in turn reduces the production of inflammatory mediators such as nitric oxide (NO) and prostaglandin E2 (PGE2). DBMB can be utilized in research on inflammatory diseases.
    DBMB
  • HY-112319A
    MK-8457
    Inhibitor
    MK-8457 is a dual inhibitor of spleen tyrosine kinase (SYK) and zeta-chain-associated protein kinase 70 (ZAP70). MK-8457 can be used for the researches of rheumatoid arthritis, hypertension.
    MK-8457
  • HY-156196
    BI 894416
    Inhibitor
    BI 894416 is a spleen tyrosine kinase (SYK) inhibitor. BI 894416 has a deuterium-labeled derivative that can be used as an internal standard for bioanalytical studies. BI 894416 is applicable to the research of severe asthma.
    BI 894416
  • HY-112390B
    Syk Inhibitor II dihydrochloride dihydrate
    Inhibitor
    Syk Inhibitor II dihydrochloride dihydrate is a potent, high selective and ATP-competitive Syk inhibitor with an IC50 of 41 nM. Syk Inhibitor II dihydrochloride dihydrate inhibits 5-HT release from RBL-cells with an IC50 of 460 nM. Syk Inhibitor II dihydrochloride dihydrate shows less potent against other kinases and has anti-allergic effect.
    Syk Inhibitor II dihydrochloride dihydrate
  • HY-145029
    SYK/JAK-IN-1
    Inhibitor
    SYK/JAK-IN-1 is a dual Syk/Jak2 kinase inhibitor. SYK/JAK-IN-1 is applicable to cancer-related research.
    SYK/JAK-IN-1
  • HY-15322A
    (rel)-PRT062607
    Inhibitor
    (rel)-PRT062607 ((rel)-P505-15) is the relative configuration of PRT062607 (HY-15322). PRT062607 is a highly selective inhibitor of Syk kinase, with an IC50 value of 1-2 nM, and is more than 80 times less potent against Fgr, Lyn, FAK, Pyk2, and Zap70.
    (rel)-PRT062607
  • HY-P991954
    GT103
    GT103 is a human-derived monoclonal antibody targeting complement factor H (CFH). GT103 binds to a conformationally distinct epitope of CFH on tumor cells. GT103 activates the classical complement pathway, induces complement-dependent cytotoxicity, and triggers antibody-dependent cellular phagocytosis (ADCP) of tumor cells. GT103 increases calreticulin translocation to tumor cell plasma membranes. GT103 mediates B-cell activation via Syk kinase phosphorylation. GT103 inhibits tumor growth and metastasis in animal models. GT103 can be used for the research of non-small cell lung cancer.
    GT103
  • HY-149895
    Syk-IN-7
    Inhibitor
    Syk-IN-7 (compound 17) is an inhibitor of spleen tyrosine kinase (SYK).
    Syk-IN-7
  • HY-125585
    Syk-IN-2
    Inhibitor
    Syk-IN-2 (Page 78; 35) is a spleen tyrosine kinase (Syk) inhibitor.
    Syk-IN-2
  • HY-162427
    NMS-0963
    Inhibitor
    NMS-0963 (compound 1) is an inhibitor of spleen tyrosine kinase (SYK) with an oral activity and IC50 value of 3 nM. NMS-0963 inhibits BaF3-TEL/SYK cell line proliferative at 27 nM.
    NMS-0963
  • HY-124605
    IQS-019
    Inhibitor
    IQS-019 is a B cell receptor (BCR) kinase inhibitor. IQS-019 can inhibit the de-phosphorylation of constitutive and IgM-activated Syk, Lyn, and Btk. IQS-019 can inhibit cell proliferation, migration and induce apoptosis. IQS-019 exhibits antitumor activity and can be used for the research of cancer, such as B cell lymphoma.
    IQS-019
  • HY-15968R
    Entospletinib (Standard)
    Inhibitor
    Entospletinib (Standard) is the analytical standard of Entospletinib. This product is intended for research and analytical applications. Entospletinib (GS-9973) is an orally bioavailable, selective Syk inhibitor with an IC50 of 7.7 nM.
    Entospletinib (Standard)
  • HY-N0805R
    Alisol B 23-acetate (Standard)
    Inhibitor
    Alisol B 23-acetate (Standard) is the analytical standard of Alisol B 23-acetate (HY-N0805). This product is intended for research and analytical applications. Alisol B 23-acetate is an orally active prototerpane-type triterpenoid. Alisol B 23-acetate can be isolated from Alisma orientalis. Alisol B 23-acetate induces Apoptosis, promotes ROS generation, downregulates CDK4/6, MMP-2/9, upregulates cleaved PARP, activates FXR and inhibits Syk. Alisol B 23-acetate has anti-inflammatory and hepatoprotective activities. Alisol B 23-acetate protects the kidney from ischemia-reperfusion injury. Alisol B 23-acetate has anticancer activity against ovarian cancer, colon cancer, lung cancer, and gastric cancer. Alisol B 23-acetate can be used in the study of atherosclerosis and allergic asthma.
    Alisol B 23-acetate (Standard)
  • HY-160930
    TOP1288
    Inhibitor
    TOP1288 is a narrow spectrum kinase inhibitor for P38α, Src and Syk kinase, with IC50 of 116nM, 24nM and 659nM, respectively. TOP1288 inhibits inflammatory cytokine release from inflamed biopsies and myofibroblasts.
    TOP1288
  • HY-18911
    Type-II-IN-1
    Inhibitor
    Type-II-IN-1 (Compound 3) is a type II spleen tyrosine kinase (Syk) inhibitor with an IC50 of 2.1 nM. Type-II-IN-1 can bind to the DFG-out conformation of Syk. Type-II-IN-1 can be used for the research of immunology, such as asthma.
    Type-II-IN-1
  • HY-N3702
    Dehydroabietinol
    Inhibitor 98.90%
    Dehydroabietinol is a SYK inhibitor with an IC50 of 46.4 μM. Dehydroabietinol inhibits the growth of Trypanosoma cruzi epimastigotes, Leishmania braziliensis promastigotes and Leishmania infantum promastigotes. Dehydroabietinol indirectly inhibits the growth of Plasmodium falciparum, alters the erythrocyte membrane, and induces spherostomatocyte transformation and endovesicle formation. Dehydroabietinol can be used in studies related to immune-mediated diseases, Chagas disease, leishmaniasis and malaria.
    Dehydroabietinol