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.

MKK4 Y223-p
MKK7 T221-p
Regulatory protein:
Alix Y223-p
JIP3 T221-p , Y223-p
RAF1 Y223-p
adriamycin Y223-p
EGF T221-p , Y223-p
glucose_starvation T221-p , Y223-p
kainic_acid T221-p , Y223-p
SB202190 T221-p , Y223-p
U0126 T221-p , Y223-p