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.

Lck Y139-p
Src Y139-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.

Lck Y139-p
LYN Y139-p
Src Y139-p
Regulatory protein:
CD28 Y139-p
CD3E Y139-p , S141-p
CD3Z Y139-p
Lck Y139-p
LYN Y139-p
PIK3CD Y139-p
PIK3R1 Y139-p
anti-IgM Y139-p
calyculin_A Y139-p , S141-p
EGF Y139-p
IGF-1 Y139-p
insulin Y139-p
LY294002 Y139-p
PDGF Y139-p
PP1 Y139-p
PP2 Y139-p
PP3 Y139-p
vanadate Y139-p
wortmannin Y139-p