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.

Akt1 S91-p , S176-p
AurA S39-p
CAMK4 S91-p
PKCA S39-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.

Akt1 S91-p , S176-p
Akt2 S91-p , S176-p
CAMK4 S91-p
PKCA S39-p
Putative upstream phosphatases:
PPP1CA S39-p
Regulatory protein:
CSFR Y248-p
17-beta-estradiol S39-p
imatinib Y248-p
MG132 K244-ub
MLN8237 S39-p
peptide inhibitor S39-p
retinoic_acid S91-p , S176-p
siRNA S39-p
vorinostat K250-ac