Activated BTK (BTK phosphorylated on tyrosine-551 and tyrosine-223) bound to phosphorylated BLNK phosphorylates phospholipase gamma-2 (PKCG2) on tyrosines 753, 759, and 1217 (Rodriguez et al. 2001 and inferred from the rat homolog) thereby activating PLCG2 to hydrolyze phosphatidylinositol 4,5-bisphosphate, yielding the second messengers diacylglycerol (DAG) and inositol 1,4,5-trisphosphate (IP3) (Carter et al. 1991, Roifman and Wang 1992, Kim et al. 2004, Sekiya et al. 2004). PLCG2 also binds phosphoinositol 3,4,5-trisphosphate (PIP3) produced by PI3K at the plasma membrane.
Roifman, CM, Wang, G
Rodriguez, R, Matsuda, M, Perisic, O, Bravo, J, Paul, A, Jones, NP, Light, Y, Swann, K, Williams, RL, Katan, M
Kim, YJ, Sekiya, F, Poulin, B, Bae, YS, Rhee, SG
Sekiya, F, Poulin, B, Kim, YJ, Rhee, SG
Carter, RH, Park, DJ, Rhee, SG, Fearon, DT
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