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.

CDK5 S17-p
ERK2 S15-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.

CDK5 S17-p
ERK2 S15-p , S205-p
Phosphatases, in vitro:
PPP1CA S94-p
PPP2CA S94-p
Regulatory protein:
SHP-1 Y398-p , Y483-p
allosterpaullone S17-p
AMPA S94-p
butyrolactone S17-p
caffeine S94-p
calyculin_A S17-p
CGS_21680 S94-p
ciclosporin S17-p , S94-p
colforsin S94-p
EGF S15-p
IL-33 S100-p
insulin S100-p , S192-p , S205-p
isoflurane S94-p
ketamine S94-p
KT5720 S94-p
long-term_potentiation S100-p
LPS S100-p
MK-2206 S192-p , S205-p
NAG-thiazoline S212-p
NKH_477 S94-p
NMDA S94-p
NSC-87877 Y398-p , Y483-p
okadaic_acid S17-p , S94-p , S212-p
PAR1-activating_peptide Y398-p , Y483-p
PGE2 S94-p
propofol S94-p
PUGNAc S212-p
purvalanol S17-p
quinpirole S94-p
seliciclib S17-p
SKF81297 S94-p
thrombin Y398-p , Y483-p
U0126 S15-p
U46619 Y398-p , Y483-p