The antibody detects endogenous levels of BTK only when phosphorylated at tyrosine 223.
Purification
Antibodies were purified by affinity-chromatography using epitope-specific peptide.
Immunogen
BTK (phospho Tyr223) antibody was raised against a peptide sequence around phosphorylation site of tyrosine 223 (A-L-Y (p)-D-Y) derived from Human BTK.
Non-receptor tyrosine kinase indispensable for B lymphocyte development, differentiation and signaling. 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, phosphorylates PLCG2 at several sites, igniting the downstream signaling pathway through calcium mobilization, followed by activation of the protein kinase C (PKC) family members. PLCG2 phosphorylation is performed in close cooperation with the adapter protein B-cell linker protein BLNK.