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.

P38A S211-p
PKM Y207-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.

BUB1 S19-p
P38A S211-p
BI_4834 S211-p
nocodazole S211-p
RO-3306 S211-p
SB203580 S211-p
siRNA S211-p
TGF-beta S211-p