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.

Chk1 S60-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.

Chk1 S60-p
PKACA S60-p , S75-p , S573-p
Phosphatases, in vitro:
PPP1CA S573-p
Putative upstream phosphatases:
PPP1CA S573-p
Regulatory protein:
PPP2R5D S573-p
Treatment:
angiotensin_2 S573-p
aphidicolin S573-p
CGP_20712A S573-p
CXCL12 S90-p
H-89 S573-p
ICI-118,551 S573-p
isoproterenol S573-p
metastatic potential S573-p
N6-benzoyl-cAMP S573-p
nocodazole S88-p , S89-p
PKI S573-p
propranolol S573-p