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 S454-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.

PLK1 S242-p , S454-p
Regulatory protein:
OGT S264-p
PLK1 S187-p , S611-p
Treatment:
BI2536 S160-p , T165-p , S171-p , S454-p , S528-p , T532-p , S535-p , S539-p , T545-p , T548-p
erlotinib S707-p
ischemia S171-p , S496-p
MLN8054 S528-p , T545-p , T548-p
nocodazole S171-p , S187-p , S262-p , S454-p , S513-p , S514-p , S523-p , T532-p , S535-p , S539-p , T545-p , S555-p , T696-p , S717-p , S718-p , S724-p , S734-p
selumetinib S476-p
siRNA S454-p
vemurafenib S476-p