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.

CDK2 S90-p
CDK7 S175-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.

CDK2 S90-p
CDK7 S175-p
CDK9 T186-p , S347-p , S353-p , T354-p , T362-p , T363-p
Phosphatases, in vitro:
PPP1CA S175-p , T186-p
PPPM1A T186-p
Putative upstream phosphatases:
PPM1B T186-p
PPP1CA S175-p
PPPM1A T186-p
Regulatory protein:
CAMK1D T186-p
NIPP-1 T186-p
actinomycin_D T186-p
alvocidib T186-p
anti-CD3/CD28 S175-p
AZD2014 T186-p
DRB T186-p
ionomycin T186-p
KN-92 T186-p
KN-93 T186-p
LLnL T186-p
metastatic potential S347-p
MG132 K68-ub , K164-ub
MG132_withdrawal S347-p
okadaic_acid S175-p , T186-p
phorbol_ester S175-p , T186-p
rapamycin T186-p
small_molecule_activator_of_PP1 S90-p , S175-p , T186-p
thapsigargin T186-p
THZ1 S175-p
W-7 T186-p