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 S435-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 S223-p , S435-p
Regulatory protein:
OGT S245-p
PLK1 S168-p , S592-p
BI2536 S141-p , T146-p , S152-p , S435-p , S509-p , T513-p , S516-p , S520-p , T526-p , T529-p
erlotinib S688-p
ischemia S152-p , S477-p
MLN8054 S509-p , T526-p , T529-p
nocodazole S152-p , S168-p , S243-p , S435-p , S494-p , S495-p , S504-p , T513-p , S516-p , S520-p , T526-p , S536-p , T677-p , S698-p , S699-p , S705-p , S715-p
selumetinib S457-p
siRNA S435-p
vemurafenib S457-p