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.

ERK1 S87-p , S105-p
ERK2 S87-p , S105-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.

Akt1 S236-p
ERK2 S87-p , S105-p
Treatment:
EGF S87-p , S105-p
MG132 S75-p , S87-p
PD98059 S87-p , S105-p