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.

PAK1 T467-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.

PAK1 T467-p
Regulatory protein:
ZAP70 Y353-p
Treatment:
BI_4834 S117-p
EGF S117-p , T467-p
ephrin_B1 Y353-p
metastatic potential T115-p , S117-p
U0126 S117-p