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.

MST1 T89-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.

MST1 T89-p
Regulatory protein:
FLT3 S5-p , S7-p
IL-33 S406-p
LCMV_gp33-41_peptide S5-p
LPS S5-p , S7-p , S406-p
peptide_antagonist S5-p , S7-p