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

Btk

Bruton tyrosine kinase

Bruton tyrosine kinase (Btk) is a member of the Tec family kinases with a well-characterized role in B-cell antigen receptor (BCR)-signaling and B-cell activation.

Btk plays a crucial role in B cell development and activation through the BCR signaling pathway and represents a new target for diseases characterized by inappropriate B cell activity. Btk is a kinase expressed exclusively in B cells and myeloid cells and has a well characterized, vital role in B cells highlighted by the human primary immune deficiency disease, X-linked agammaglobulinemia (XLA), which results from mutation in the Btk gene. Btk plays an essential role in the BCR signaling pathway. Antigen binding to the BCR results in B cell receptor oligomerization, Syk and Lyn kinase activation, followed by Btk kinase activation. Once activated, Btk forms a signaling complex with proteins such as BLNK, Lyn, and Syk and phosphorylates phospholipase C (PLC)γ2. This leads to downstream release of intracellular Ca2+ stores and propagation of the BCR signaling pathway through extracellular signal-regulated kinase and NF-κB signaling, ultimately resulting in transcriptional changes to foster B cell survival, proliferation, and/or differentiation.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-162081
    BTK-IN-32
    Inhibitor
    BTK-IN-32 (compound C2) is a potent inhibitor of BTK. BTK-IN-32 activates full-length BTK and smaller multidomain BTK fragments instead of the isolated kinase domain.
    BTK-IN-32
  • HY-150885
    BTK ligand 1
    Degrader
    BTK ligand 1 (compound 1) is a ligand targeting Bruton’s tyrosine kinase (Btk). BTK ligand 1 can combine with E3 ligase ligand (Ligand for E3 Ligase) through PROTAC Linker to form PROTAC. PROTACs targeting Btk can be used in the study of chronic lymphocytic leukemia (CLL) and other BK cell malignancies.
    BTK ligand 1
  • HY-173126
    BTK ligand-14
    Inhibitor
    BTK ligand-14 is a PROTAC target protein ligand that targets BTK and can be used for the synthesis of FDU73 (HY-173125).
    BTK ligand-14
  • HY-143730
    BTK inhibitor 20
    Inhibitor
    BTK inhibitor 20 is a potent BTK inhibitor with an IC50 of 8 nM.
    BTK inhibitor 20
  • HY-147754
    JAK3/BTK-IN-6
    Inhibitor
    JAK3/BTK-IN-6 (compound 14h) is a potent BTK and JAK3 dual inhibitor, with IC50 values of 0.6 and 0.4 nM, respectively. JAK3/BTK-IN-6 shows good metabolic stability in human liver microsome. JAK3/BTK-IN-6 can be used for hematological and immune diseases research.
    JAK3/BTK-IN-6
  • HY-153705
    BTK-IN-25
    Inhibitor
    BTK-IN-25 (compound 71) is a potent inhibitor of BTK, and inhibits BTK(C481S) with an IC50 value of 0.77 nM. BTK-IN-25 inhibits BTK in DOHH2 cells with an IC50 value of 1 nM.
    BTK-IN-25
  • HY-143719
    JAK3/BTK-IN-4
    Inhibitor
    JAK3/BTK-IN-4 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-4 has the potential for the research of JAK3 kinase and/or BTK-related diseases (extracted from patent WO2021147953A1, compound 003)
    JAK3/BTK-IN-4
  • HY-147582
    BTK-IN-12
    Inhibitor
    BTK-IN-12 is a potent BTK inhibitor with IC50s of 1.2 nM and 0.8 nM for wild-type BTK or mutated BTK (C481S), respectively (WO2022037649A1; compound 8).
    BTK-IN-12
  • HY-163827
    ABBV-992
    Inhibitor
    ABBV-992 is a potent and selective BTK inhibitor. ABBV-992 can be used for the research of cancer.
    ABBV-992
  • HY-179077
    PROTAC BTK/IKZF1/3 Degrader-1
    Degrader
    PROTAC BTK/IKZF1/3 Degrader-1 is a selective and orally active BCL6 and IKZF1/3 PROTAC degrader. PROTAC BTK/IKZF1/3 Degrader-1 exhibits antitumor activity. PROTAC BTK/IKZF1/3 Degrader-1 can be used for the research of cancer, such as lymphoma. (Structure Note: Pink: BCL6/IKZF1/3 ligand (HY-179076); Blue: CRBN ligand (HY-41547))
    PROTAC BTK/IKZF1/3 Degrader-1
  • HY-168427
    Avitinib maleate dihydrate
    Inhibitor
    Avitinib (Abivertinib) maleate dihydrate is a third-generation, irreversible and orally active selective EGFR inhibitor, with IC50 values of 0.18 nM, 0.18 nM, 7.68 nM and against EGFR L858R, EGFR T790M and wild-type EGFR. Avitinib maleate dihydrate is also a BTK inhibitor that induces apoptosis and inhibits phosphorylation of BTK in mantle cell lymphoma. Avitinib maleate dihydrate shows anticancer effects.
    Avitinib maleate dihydrate
  • HY-143901
    EGFR-IN-40
    Inhibitor
    EGFR-IN-40 (compound 3z) is a potent BTK, EGFR, and ITK inhibitor with IC50 values of 1.2 nM, 5.3 nM, and 46.1 nM, respectively.
    EGFR-IN-40
  • HY-W062695
    (R)-Acalabrutinib
    Inhibitor
    (R)-Acalabrutinib ((R)-ACP-196) is the enantiomer of Acalabrutinib (HY-17600). (R)-Acalabrutinib is an inhibitor for Bruton’s tyrosine kinase (BTK).
    (R)-Acalabrutinib
  • HY-110113
    CTA056
    Inhibitor
    CTA056 is an ITK (IL-2-inducible T-cell kinase) inhibitor with an IC50 of 0.1 μM. CTA056 selectively targets malignant T cells and modulates oncomirs. CTA056 induces apoptosis and is a potential therapeutic agent for the research of T-cell leukemia and lymphoma.
    CTA056
  • HY-159589
    BTK-IN-37
    Inhibitor
    BTK-IN-37 (compound 8d) is a BTK inhibitor that can induce apoptosis in cancer cells. BTK-IN-37 targets BTK with Ki and IC50 of 5.07 nM and 3.6 nM, respectively. BTK-IN-37 can also selectively induce enrichment of genes involved in necroptosis and pyroptosis.
    BTK-IN-37
  • HY-101474BS
    (R)-Zanubrutinib-d5
    (R)-Zanubrutinib-d5 is deuterium labeled (R)-Zanubrutinib. (R)-Zanubrutinib is the R enantiomer of Zanubrutinib. Zanubrutinib is a selective Bruton tyrosine kinase (BTK) inhibitor.
    (R)-Zanubrutinib-d<sub>5</sub>
  • HY-152212
    BTK-IN-19
    Inhibitor
    BTK-IN-19 (Compound 51) is a reversible BTK inhibitor with an IC50 of <0.001 μM.
    BTK-IN-19
  • HY-151211
    BTK-IN-16
    Inhibitor
    BTK-IN-16 is a dual inhibitor of BTK wild type and C481S mutant of Bruton’s tyrosine kinase (BTK) with IC50s of 5.1 and 4.1 μM. BTK-IN-16 can be used for the research of autoimmune diseases and chronic lymphocytic leukemia.
    BTK-IN-16
  • HY-153536
    PROTAC BTK Degrader-3
    Inhibitor
    PROTAC BTK Degrader-3 is a potent BTK degrader with a DC50 value of 10.9 nM of BTK degradation in Mino cells. PROTAC BTK Degrader-3 has the potential for B-cell malignancies, including chronic lymphoid malignancies research.
    PROTAC BTK Degrader-3
  • HY-E70808
    BTK C481R Recombinant Human Active Protein Kinase
    Bruton's tyrosine kinase (BTK) plays a vital role in B-cell antigen receptor (BCR) signalling transduction pathway. BTK can be used for the study of lymphomas and autoimmune diseases. BTK has multiple mutants. BTK C481R Recombinant Human Active Protein Kinase is a recombinant BTK C481R protein that can be used to study BTK C481R-related functions.
    BTK C481R Recombinant Human Active Protein Kinase
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity