Putative in vivo kinases: 

An enzyme-substrate reaction that occurs within living cells; includes cultured cells, ex vivo samples, and intact organisms. In the case of kinases, the large number of protein kinases in intact cells makes exact identification of the responsible kinase challenging.

Fyn Y188-p , Y199-p
Regulatory protein:
ZAP70 Y199-p
Treatment:
anti-CD28 Y188-p , Y199-p
anti-CD3 Y188-p , Y199-p
U0126 Y188-p , Y199-p
vanadate Y188-p , Y199-p