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.

CDK5 T451-p , T461-p
GSK3B S427-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.

CDK5 T451-p , T461-p
Regulatory protein:
BMAL1 S427-p , S431-p , S434-p , S437-p
SENP2 K67-sm , K842-sm
SENP3 K67-sm , K842-sm
17-beta-estradiol K67-sm , K842-sm
LY294002 S427-p , S431-p