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.

CK2A1 S223-p
GSK3B S185-p , T189-p
RSK2 S273-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.

CDK1 S64-p
CDK2 S64-p , T189-p
CDK3 T189-p
CK2A1 S223-p
GSK3B S185-p , T189-p
p90RSK S105-p
PKACA S105-p , S240-p
PKCA S240-p
RSK2 S273-p
RSK3 S273-p
Regulatory protein:
HRas S64-p , T189-p , S223-p
MEK1 S105-p
p90RSK S105-p
RAF1 S64-p
anisomycin S64-p
C5b-9 K39-ac , K216-ac , K217-ac
collagen_I S105-p
FGF1 S64-p
hydroxyurea S64-p , T189-p
LPS S64-p
LY294002 S64-p , S105-p , T189-p
nocodazole S64-p , T189-p
oltipraz S105-p , T189-p
PD98059 S64-p , T189-p
PDGF S64-p
SB203580 S64-p , T189-p
seliciclib S64-p , T189-p
serum K39-ac , S64-p , T189-p , K216-ac , K217-ac , S273-p
SP600125 S64-p
TBB S223-p
TGF-alpha S105-p
U0126 S64-p , S105-p , T189-p