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.

PKG1 T278-p , S282-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.

PKG1 T278-p , S282-p
Phosphatases, in vitro:
PPP1CC S675-p
Regulatory protein:
PPP1CA S675-p
PPP1CC S675-p
Src iso1 T278-p , S282-p
cGMP_analog T278-p , S282-p
IFN-gamma S743-p
IL-33 S508-p
insulin S35-p , S675-p
palmitate T278-p , S282-p
sildenafil T278-p , S282-p
siRNA S675-p
URMC-099 S675-p