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.
MLK3	S218-p , T222-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.
ASK1	S218-p
Cot	S218-p
MEKK3	S218-p
MKK3	S218-p , T222-p

Phosphatases, in vitro:
PPP2CA	T222-p

Putative upstream phosphatases:
PPP2CA	T222-p

Regulatory protein:
APOL1	S218-p

Treatment:
2-deoxyglucose	S218-p
IL-13	S218-p
ischemia	S218-p
MG132	K243-ub
nocodazole	S3-p , S15-p
pneumolysin	S218-p
PP2	S218-p
PP3	S218-p
SB203580	S218-p
sorbitol	T222-p
SU6656	S218-p
TAK1_inhibitor	S218-p
TNF	S218-p
vanadate	S218-p