Application
Western blot of NIH 3T3 cell lysates. The cells were serum starved (control) or incubated in the presence of serum (serum) for 5 minutes. The western blot shows the immunolabeling of the ~45k MEK1/2 was absent in control and stimulated by serum.| Product Name | MEK1 / 2 (phospho Ser218 / Ser222) Antibody |
|---|---|
| Antibody Type | Primary Antibodies |
| Product description | MEK 1 and MEK 2 are integral components of the MAP kinase cascade that regulates cell growth and differentiation and this pathway also plays a key role in synaptic plasticity in brain. Activation of MEK 1/2 occurs via phosphorylation of two serine residues (Ser218 and Ser222). Activated MEK 1/2 then acts as a dual specificity kinase phosphorylating both a threonine and a tyrosine residue on ERK. This phosphorylation of ERK by MEK 1/2 is a critical step in the MAP kinase cascade.1) N.G. Ahn, N.G., Robbins, D.G., Haycock, J.W., Seger, R., Cobb, M.H. and Krebs, E.G., "Identification of an activator of the microtubule-associated protein 2 kinases ERK1 and ERK2 in PC12 cells stimulated with nerve growth factor or bradykinin," J. Neurochem. 59 (1992) 147 - 156. |
| Immunogen | MEK 1/2 (Ser218/222) polyclonal antibody was raised against a synthetic phosphopeptide corresponding to amino acids residues surrounding the phosphoSer218/222 of human MEK 1/2. |
| Modification | p-Ser218 / Ser222 |
| Clonality | Polyclonal |
|---|---|
| Host Species | Rabbit |
| Tested Applications | WB |
| The antibody immunolabels the ~45k MEK protein in a Western blot of serum-stimulated NIH 3T3 cells. The immunolabeling is blocked by the phosphopeptide used as antigen but not the corresponding non-phosphopeptide. Applications include Dot Blots (DB) and Western Blots (WB). Suitability for Immunohistochemistry (IHC) has not yet been determined. Human, mouse, rat and Xenopus have 100% amino acid sequence identity with the antigen used to raise the antibody. When internally tested under ideal conditions the working dilutions were 1:1000 for DB and WB. | |
| Species Reactivity | HumanMouseRatXenopus |
| Concentration | 1mg/ml |
| Purification | Affinity purified |
| Gene Symbol | MAP2K1 |
|---|---|
| Alternative Names | CFC3 MEK1 MKK1 MAPKK1 PRKMK1 ERK activator kinase 1 MAP kinase kinase 1 |
| Molecular Weight(MW) | 45 |
| Tissue Specificity | MEK1/2 antibody is specific for MEK 1/2 phosphorylated at Ser218/222. |
Application
Western blot of NIH 3T3 cell lysates. The cells were serum starved (control) or incubated in the presence of serum (serum) for 5 minutes. The western blot shows the immunolabeling of the ~45k MEK1/2 was absent in control and stimulated by serum.| Application Notes | The antibody immunolabels the ~45k MEK protein in a Western blot of serum-stimulated NIH 3T3 cells. The immunolabeling is blocked by the phosphopeptide used as antigen but not the corresponding non-phosphopeptide. Applications include Dot Blots (DB) and Western Blots (WB). Suitability for Immunohistochemistry (IHC) has not yet been determined. Human, mouse, rat and Xenopus have 100% amino acid sequence identity with the antigen used to raise the antibody. When internally tested under ideal conditions the working dilutions were 1:1000 for DB and WB. |
|---|
| Form | Liquid |
|---|---|
| Storage Instructions | For long term storage –80˚C is recommended, but shorter term storage at –20˚C is also acceptable as aliquots may be taken without freeze/thawing due to the presence of 50% glycerol. Stable for one year. |
| Storage Buffer | 100 uL in 10 mM HEPES (pH 7.5), 150 mM NaCl, 100 ug per mL BSA and 50% glycerol. |
