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.

PKCA S29-p
Src Y13-p , Y86-p , Y92-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.

CDK2 S670-p
PKCA S29-p
PKCD S29-p
PKCG S29-p
Regulatory protein:
ARRB2 K19-ub , K21-ub , K30-ub , K31-ub
angiotensin_2 S685-p
aphidicolin S670-p
carbachol Y13-p , Y86-p , Y92-p
EGF S670-p
isoproterenol Y13-p , K19-ub , K21-ub , K30-ub , K31-ub , Y86-p , Y92-p , S685-p
LRRK2-IN-1 S670-p
MG132 K57-ub , K62-ub , K170-ub , K677-ub
phorbol_ester S29-p
selumetinib S670-p
siRNA K19-ub , K21-ub , K30-ub , K31-ub
thymidine S670-p
U0126 S670-p