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.
ERK1	S315-p
ERK2	S315-p

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.

Treatment:
22-hydroxycholesterol	S315-p
PD98059	S315-p
retinoic_acid	S315-p
serum	S315-p , S345-p , S362-p