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.

Arg Y783-p
CAMK2A T788-p , T789-p
PKCA S785-p
PKCE T788-p , T789-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.

Arg Y783-p
Phosphatases, in vitro:
PPP2CA T788-p , T789-p
PPP2CA T788-p , T789-p
PPP2CB T788-p , T789-p
PTP4A3 Y783-p
Putative upstream phosphatases:
PPP2CA T788-p , T789-p
Regulatory protein:
ALK1 T788-p , T789-p
EGFR Y795-p
ENG T788-p , T789-p
angiotensin_2 T788-p , T789-p
anti-CD28 Y783-p
anti-CD3 Y783-p
bisindolylmaleimide S785-p
calphostin_C T788-p , T789-p
endothall T788-p , T789-p
ephrin_B1 Y783-p , Y795-p
ephrin_B2 Y783-p
erlotinib Y783-p
gefitinib Y783-p , Y795-p
HGF Y783-p
LY2109761 S785-p , T788-p , T789-p , Y795-p
okadaic_acid T788-p , T789-p
P0108 Y783-p
phorbol_ester S785-p , T788-p , T789-p
SB431542 T788-p , T789-p
Shh T788-p , T789-p
Su11274 Y783-p
TGF-beta S785-p , T788-p , T789-p , Y795-p
U0126 Y783-p
vorinostat K794-ub