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.
p90RSK	S709-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.
p90RSK	S709-p

Regulatory protein:
CD38	S118-p , T481-p , S482-p
RSK2	S709-p
RSK3	S709-p

Treatment:
amino_acids	S709-p
angiotensin_2	S143-p , S145-p , S272-p , S709-p
BI-D1870	S709-p
BI2536	S272-p
dasatinib	S709-p
EGF	S709-p
GDC0349	S709-p
gefitinib	S709-p
ischemia	S104-p , S143-p , T459-p , T544-p , S709-p , S736-p
lapatinib	S272-p
LRRK2-IN-1	S709-p
metastatic potential	S143-p , S145-p , T481-p , S482-p , S709-p
metformin	S392-p , S399-p , T473-p , S475-p , S562-p , S709-p
nocodazole	S562-p
rapamycin	S709-p
selumetinib	S482-p , S709-p , T721-p
SII_angiotensin_2	S272-p
siRNA	S709-p
Su11274	Y126-p , S709-p
Torin1	S170-p , T173-p
U0126	S709-p
vemurafenib	S482-p , S709-p , T721-p