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.

CDK1 S263-p
ROCK2 S243-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 S263-p
Regulatory protein:
CCNA2 S263-p
CCNB1 S263-p
MPRIP S247-p
BMI-1026 S263-p
cantharidin S263-p
cytochalasin_D S263-p
etoposide S263-p
exercise S243-p
FK506 S263-p
high-fat diet S243-p
IL-33 S271-p
insulin S235-p , S239-p , S259-p , S263-p
MK-2206 S259-p , S263-p
nocodazole S263-p
salubrinal S263-p
seliciclib S263-p
taxol S263-p