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.

PDK1 T256-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.

PDK1 T256-p
BDNF S421-p
dexamethasone S421-p
IGF-1 S421-p
learning S421-p
LY294002 T256-p , S421-p
neurotrophin-3 S421-p
neurotrophin-4 S421-p
NGF S421-p
TGF-beta S255-p , T256-p
urofollitropin S255-p , T256-p
vanadate T256-p , S421-p