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-10997
    Ibrutinib
    Inhibitor 99.93%
    Ibrutinib (PCI-32765) is a selective, irreversible Btk inhibitor with an IC50 of 0.5 nM.
    Ibrutinib
  • HY-17600
    Acalabrutinib
    Inhibitor 99.88%
    Acalabrutinib (ACP-196) is an orally active, irreversible, and highly selective second-generation BTK inhibitor. Acalabrutinib binds covalently to Cys481 in the ATP-binding pocket of BTK. Acalabrutinib demonstrates potent on-target effects and efficacy in mouse models of chronic lymphocytic leukemia (CLL). Acalabrutinib is a click chemistry reagent, itcontains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Acalabrutinib
  • HY-131328
    Pirtobrutinib
    Inhibitor 99.88%
    Pirtobrutinib (LOXO-305), a highly selective and non-covalent next generation BTK inhibitor, inhibits diverse BTK C481 substitution mutations. Pirtobrutinib causes regression of BTK-dependent lymphoma tumors in mouse xenograft models. Pirtobrutinib is also more than 300-fold selective for BTK versus 370 other kinases tested and shows no significant inhibition of non-kinase off-targets at 1 μM.
    Pirtobrutinib
  • HY-101474A
    Zanubrutinib
    Inhibitor 99.18%
    Zanubrutinib (BGB-3111) is a selective and orally active Bruton tyrosine kinase (Btk) inhibitor (IC50: 0.3 nM).
    Zanubrutinib
  • HY-19834
    Fenebrutinib
    Inhibitor 99.42%
    Fenebrutinib (GDC-0853) is a potent, selective, orally available, and noncovalent bruton's tyrosine kinase (Btk) inhibitor with Kis of 0.91 nM, 1.6, 1.3, 12.6, and 3.4 nM for WT Btk, and the C481S, C481R, T474I, T474M mutants. Fenebrutinib has the potential for rheumatoid arthritis and systemic lupus erythematosus research.
    Fenebrutinib
  • HY-157156
    JDB175
    Inhibitor
    JDB175 is a highly selective BTK inhibitor with oral activity and excellent blood-brain barrier penetration. JDB175 shows good activity in the mouse model of central nervous system lymphoma without obvious signs of toxicity, effectively inhibits the proliferation of BTK signaling pathway of human lymphoma cells, induces cell cycle arrest, and promotes cell apoptosis .
    JDB175
  • HY-160246
    QL47B
    Inhibitor
    QL47B is a potent inhibitor of BTK, with the IC50 value of 1.3 μM. QL47B has anti-tumor activity.
    QL47B
  • HY-156604
    Cinsebrutinib
    Inhibitor
    Cinsebrutinib is a Bruton's tyrosine kinase inhibitor, extracted from patent WO2021207549 (compound 5-6). Cinsebrutinib has the potential for cancer study.
    Cinsebrutinib
  • HY-128757
    Remibrutinib
    Inhibitor 99.49%
    Remibrutinib, is a potent and orally active bruton tyrosine kinase (BTK) inhibitor with an IC50 value of 1 nM. Remibrutinib inhibits BTK activity with an IC50 value of 0.023 μM in blood. Remibrutinib has the potential for Chronic urticaria (CU) treatment.
    Remibrutinib
  • HY-109192
    Tolebrutinib
    Inhibitor 99.79%
    Tolebrutinib (SAR442168) is a potent, selective, orally active and brain-penetrant inhibitor of Bruton tyrosine kinase (BTK), with IC50s of 0.4 and 0.7 nM in Ramos B cells and in HMC microglia cells, respectively. Tolebrutinib exhibits efficacy in central nervous system immunity. Tolebrutinib can be used for the research of multiple sclerosis (MS).
    Tolebrutinib
  • HY-112215
    Nemtabrutinib
    Inhibitor 98.64%
    ARQ 531 (MK-1026) is a reversible non-covalent and orally active inhibitor of Bruton’s Tyrosine Kinase (BTK), with IC50s of 0.85 nM and 0.39 nM for WT-BTK and C481S-BTK, respectively.
    Nemtabrutinib
  • HY-132842
    Sunvozertinib
    Inhibitor 99.92%
    Sunvozertinib (DZD9008) is a potent ErbBs (EGFR, Her2, especially mutant forms) and BTK inhibitor. Sunvozertinib shows IC50s of 20.4, 20.4, 1.1, 7.5, and 80.4 nM for EGFR exon 20 NPH insertion, EGFR exon 20 ASV insertion, EGFR L858R and T790M mutations, and Her2 Exon20 YVMA, and EGFR WT A431, respectively (patent WO2019149164A1, example 52).
    Sunvozertinib
  • HY-129390
    Orelabrutinib
    Inhibitor 99.90%
    Orelabrutinib (ICP-022) is a potent, orally active, and irreversible Bruton's tyrosine kinase (BTK) inhibitor with potential antineoplastic activity. Orelabrutinib prevents both the activation of the B-cell antigen receptor (BCR) signaling pathway and BTK-mediated activation of downstream survival pathways, inhibiting the growth of malignant B-cells that overexpress BTK.
    Orelabrutinib
  • HY-15771
    Tirabrutinib
    Inhibitor 99.65%
    Tirabrutinib (ONO-4059) is an orally active Bruton’s Tyrosine Kinase (BTK) inhibitor (can cross the blood-brain barrier (BBB)), with an IC50 of 6.8 nM. Tirabrutinib irreversibly and covalently binds to BTK and inhibits aberrant B cell receptor signaling. Tirabrutinib can be used in studies of autoimmune diseases and hematological malignancies.
    Tirabrutinib
  • HY-18012
    Spebrutinib
    Inhibitor 99.62%
    Spebrutinib (AVL-292; CC-292) is a covalent, orally active, and highly selective with an IC50 of 0.5 nM.
    Spebrutinib
  • HY-112166
    Rilzabrutinib
    Inhibitor 98.22%
    Rilzabrutinib (PRN1008) is a reversible covalent, selective and oral active inhibitor of Bruton’s Tyrosine Kinase (BTK), with an IC50 of 1.3 nM.
    Rilzabrutinib
  • HY-100342
    Ibrutinib-biotin
    Inhibitor 99.93%
    Ibrutinib-biotin is a probe that consists of Ibrutinib linked to biotin via a long chain linker, extracted from patent WO2014059368A1 Compound 1-5, has an IC50 of 0.755-1.02 nM for BTK.
    Ibrutinib-biotin
  • HY-153220
    NX-2127
    Inhibitor 99.72%
    NX-2127 is an orally and potent BTK inhibitor, inducing degradation of the mutated BTKC481S in cells. NX-2127 inhibits proliferation of BTKC481S mutant TMD8 cells, more effectively than Ibrutinib (HY-10997). NX-2127 catalyzes the degradation of Ikaros (IKZF1) and Aiolos (IKZF3) with of 25 nM and 54 nM, respectively. NX-2127 stimulates T cell activation and increases IL-2 production in primary human T Cells.
    NX-2127
  • HY-112161
    Branebrutinib
    Inhibitor 99.82%
    Branebrutinib (BMS-986195) is a highly potent, selective covalent, irreversible inhibitor of Bruton’s tyrosine kinase (BTK), with an IC50 of 0.1 nM. Branebrutinib is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.
    Branebrutinib
  • HY-122562
    MT-802
    Inhibitor 98.94%
    MT-802 is a potent BTK degrader based on Cereblon ligand, with a DC50 of 1 nM. MT-802 has potential to treat C481S mutant chronic lymphocytic leukemia (CLL).
    MT-802
Cat. No. Product Name / Synonyms Species Source
Cat. No. Product Name / Synonyms Application Reactivity