Kinase, in vitro: 

An enzyme-substrate reaction that occurs in non-living experimental conditions such as a test tube. For example, a purified enzyme is reacted with a substrate protein or mixture of proteins or peptides.

ERK2 S161-p , S246-p , S251-p , T526-p
 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.

ERK2 S161-p , S246-p , S251-p , T526-p
Putative upstream phosphatases:
PPP1CA T526-p
PPP2CA T526-p
Treatment:
antibody T526-p
BI2536 S531-p , S548-p
CXCL12 T526-p
EGF S246-p , S251-p , T526-p
ionomycin T526-p
ischemia T3-p , T357-p , T526-p
LRRK2-IN-1 S327-p
metastatic potential S532-p
OAG T526-p
okadaic_acid T526-p
PD98059 S161-p , S246-p , S251-p , T526-p
phorbol_ester T526-p
selumetinib T3-p , S131-p , S154-p , S161-p , S185-p , S187-p , S190-p , T526-p
serum S161-p , S246-p , S251-p , T526-p
vemurafenib T3-p , S131-p , S161-p , S185-p , S187-p , S190-p , T526-p
Y27632 S21-p