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.

ERK1 S295-p
Treatment:
adrenalectomy S222-p , S226-p
apocynin S222-p , S226-p
DPI S222-p , S226-p
EGF S222-p , S226-p
insulin S222-p , S226-p
metoprolol S222-p , S226-p
NSC23766 S222-p , S226-p
okadaic_acid S222-p , S226-p
PD184352 S295-p
serum S295-p