Application

Useful for kinase assay and Western blot.

Biochem/physiol Actions

Recombinant full-length human BTK (C481S) was expressed by Baculovirus in Sf9 insect cells using an N-terminal His tag. BTK (also known as Bruton tyrosine kinase) plays a crucial role in B-lymphocyte differentiation and activation. BTK interacts with SRC homology 3 domains of FYN, LYN and HCK that are activated upon stimulation of B- and T-cell receptors ⁽¹⁾.Defects in the BTK gene cause Agammaglobulinemia, an X-linked immunodeficiency characterized by failure to produce mature B lymphocyte cells and associated with a failure of Ig heavy chain rearrangement. The unique role of BTK makes it a desirable target for potential anti-cancer, anti-inflammatory and anti-viral agents as well as other treatments ⁽²⁾.

Legal Information

PRECISIO is a registered trademark of Sigma-Aldrich Co. LLC

Reconstitution

Formulated in 50mM sodium phosphate, pH 7.0, 300mM NaCl, 150mM imidazole, 0.1mM PMSF, 0.25mM DTT, with 25% glycerol.

Storage and Stability

Store in aliquots at -70°C. Avoid freeze/thaw cycles.