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.

ATR S516-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.

ATR S516-p
Regulatory protein:
PLK1 S279-p , T337-p , S680-p , S742-p , S1684-p , S1854-p , S1858-p , S2098-p , T2940-p , S2955-p , S3036-p , T3372-p
PRP4 S518-p
dasatinib T1845-p
hydroxyurea S516-p
ischemia S3036-p
MEK_inhibitor_I T3281-p
metastatic potential S279-p
MG132 K3707-ub
MLN8054 S537-p , S1858-p , S2493-p , S2691-p
MS275 K1235-ac
nocodazole S279-p , S283-p , T337-p , S680-p , S684-p
SII_angiotensin_2 T3028-p
ZK-Thiazolidinone T2153-p