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.

PKACA S1250-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.

PKACA S1250-p
Regulatory protein:
EGFR S1250-p
AG1296 S1250-p
H-89 S1250-p
ischemia T1772-p
KT5720 S1250-p
PDGF S1250-p
SII_angiotensin_2 S1756-p