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.

HIPK2 S85-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.

HIPK2 S54-p , S85-p
Regulatory protein:
ATM S85-p
ionizing_radiation S85-p
MG132 S85-p
okadaic_acid S85-p
SB203580 S85-p
siRNA S85-p
SP600125 S85-p
U0126 S85-p