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 S152-p , S154-p , S164-p
ERK2 S152-p , S154-p , S164-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.

ERK1 S152-p , S154-p , S164-p
ERK2 S152-p , S154-p , S164-p
JNK2 S152-p , S154-p , S164-p
Regulatory protein:
TOB1 S164-p
Treatment:
AG1296 S152-p , S154-p , S164-p
EGF S152-p , S154-p , S164-p
estradiol S152-p , S154-p , S164-p
FGF1 S152-p , S154-p , S164-p
ischemia S205-p
PD98059 S152-p , S154-p , S164-p
PDGF S152-p , S154-p , S164-p
serum S152-p , S154-p , S164-p
staurosporine T172-p , S320-p
U0126 S152-p , S154-p , S164-p