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.

INSR Y21-p
PKACA T216-p
dexamethasone Y21-p
insulin Y21-p
serum S5-p