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.

PLK1 S274-p , S326-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.

AurB T40-p
PLK1 S274-p , S326-p
apicidin K39-ac
dasatinib T108-p
ischemia T108-p
nocodazole S139-p , T145-p , Y223-p
siRNA K39-ac