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.

CDK2 S51-p , S76-p , S91-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.

CDK1 S76-p
CDK2 S51-p , S76-p , S91-p , T233-p
Chk1 S76-p
CK2A1 S66-p
Regulatory protein:
VHL T195-p
dasatinib T195-p , S201-p
EGF S76-p , S141-p , T183-p
ionizing_radiation S47-p
ischemia T233-p
LRRK2-IN-1 S141-p
MLN8054 S437-p , S445-p , S447-p
nocodazole S47-p , S49-p , S51-p , S66-p , S76-p , T195-p , S201-p , S714-p
PI-103 S51-p
serum_starvation K79-ub , K192-ub , K226-ub , K376-ub