MEK1 (Mitogen activated protein kinase kinase 1) catalyzes the concomitant phosphorylation of a threonine and a tyrosine residue in a Thr-Glu-Tyr sequence located in MAP kinases. MEK1 activates ERK1 and ERK2 MAP kinases. Mitogen activated protein kinase kinase 2 (MEK2 or MAPKK2) is a member of a family of tyrosine/threonine protein kinases that activate the ERK1 and 2 and MAPK enzymes by phosphorylating both residues within the threonine/glutamate/tyrosine (TEY) motif in the activation loop. MEK1 and 2 are also activated by dual phosphorylation, which occurs on serine 218 and 222, in the activation loop of the MEK. Threonine 292 of MEK1 is phosphorylated by ERK 2, which serves as a negative feedback loop by suppressing activation of MEK1.

Dual specificity mitogen-activated protein kinase kinase 1; MAP kinase kinase 1; MAPKK 1; MKK1; ERK activator kinase 1; MAPK/ERK kinase 1; MEK 1; MAP2K1; MEK-1; PRKMK1

q02750

Human,Mouse,Rat

WB,IHC,IF,ICC

WB 1:500-1:1000
IHC 1:50-1:200
IF 1:50-1:200
ICC 1:100-1:400

~ 43 kDa

Rabbit

This antibody detects endogenous levels of MEK1protein only when phosphorylated at Thr292.

Synthetic phosphopeptide derived from human MEK1 around the phosphorylation site of Threonine 292.

Polyclonal

Rabbit IgG

The antibody was affinity-purified from rabbit antiserum by affinity-chromatography using epitope-specific immunogen and the purity is > 95% (by SDS-PAGE).

PBS with 0.02% sodium azide, 50% glycerol, pH7.2

1mg/ml

Store at 4℃ short term,and store at -20℃ long term. Avoid freeze-thaw cycles.