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.

JAK2 S349-p
Regulatory protein:
prolactin S349-p
AG490 S349-p
anandamide S349-p
mutation S349-p
okadaic_acid T415-p
PRL S349-p