Recombinant BTK protein
|Catalog No: 81083||Format: 20 µg||$410||Buy|
|Catalog No: 81783||Format: 1 mg||$3,550||Buy|
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Expressed In: Baculovirus Protein Species: Human
A representative Technical Data Sheet (TDS) is provided here. Please refer to the lot-specific TDS you will receive with your order for the lot-specific buffer contents and protein concentration.
BTK (Bruton Tyrosine Kinase), also known as B-Cell Progenitor Kinase, EC 220.127.116.11, AGMX1, ATK, BPK, is a non-receptor tyrosine kinase indispensable for B lymphocyte development, differentiation and signaling. It acts as a platform to bring together a diverse array of signaling proteins and is implicated in cytokine receptor signaling pathways. . Binding of antigen to the B-cell antigen receptor (BCR) triggers signaling that ultimately leads to B-cell activation. After BCR engagement and activation at the plasma membrane, BTK can phosphorylate PLCG2 at several sites, igniting the downstream signaling pathway through calcium mobilization, followed by activation of the protein kinase C (PKC) family members. It also plays an important role in the function of immune cells of innate as well as adaptive immunity, as a component of the Toll-like receptors (TLR) pathway.
BTK can be activated by phosphorylation. In primary B lymphocytes, it is almost always non-phosphorylated and is thus catalytically inactive. Stimulation of TLR8 and TLR9 causes BTK activation. As a negative feedback mechanism to fine-tune BCR signaling, activated PRKCB down-modulates BTK function via direct phosphorylation of BTK at Ser-180, resulting in translocation of BTK back to the cytoplasmic fraction. PIN1, SH3BP5, and IBTK were also identified as BTK activity inhibitors. Interaction with CAV1 leads to dramatic down-regulation of the kinase activity of BTK. LFM-13A is a specific inhibitor of BTK.
Recombinant BTK protein is suitable for use in the study of enzyme kinetics, inhibitor screening, and selectivity profiling.
Recombinant human BTK protein was expressed in a baculovirus expression system as the full length protein (accession number NP_000052.1) with an N-terminal FLAG tag. The molecular weight of the protein is 77.6 kDa.
Recombinant proteins in solution are temperature sensitive and must be stored at -80°C to prevent degradation. Avoid repeated freeze/thaw cycles and keep on ice when not in storage.
This product is for research use only and is not for use in diagnostic procedures. This product is guaranteed for 6 months from date of arrival.