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.

AMPKA2 S334-p
ERK1 S359-p , S364-p
ERK2 S296-p , S323-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.

AMPKA2 S334-p
ERK1 S359-p , S364-p
ERK2 S296-p , S323-p
Regulatory protein:
HSP27 S359-p
Treatment:
estradiol S359-p , S364-p
LPS S359-p , S364-p
metformin S334-p
nicotine S334-p
PD98059 S359-p , S364-p
serum S296-p , S323-p , S359-p , S364-p
TNF S359-p
U0126 S296-p , S323-p , S359-p , S364-p