Specific for the ~42k - 44k ERK/MAPK phosphorylated at Thr202 and Tyr204. Immunolabeling is blocked by the phosphopeptide used as antigen but not by the corresponding dephosphopeptide. The immunolabeling is completely eliminated by lambda-phosphatase.
Note: Not all species have been tested for usefulness with this product. Only those species listed have been tested. We cannot make any guarantees about additional reactivities which may or may not occur.
Synthetic phospho-peptide corresponding to amino acid residues surrounding Thr202/Tyr204 conjugated to KLH
Localization:
Cell Membrane
Modification:
p Thr202, p Tyr204
Species Reactivity:
Human and Rat. Expected to react based on homology: Bovine, Canine, Chicken, Mouse, Primates, Xenopus and Zebra Fish
Applications:
Uses:
NB 500-141 can be used in Western blot where a band is seen at ~ 42-44 kDa, representing ERK 1/2.
Dilutions:
Immunohistochemistry-Paraffin, Western Blot 1:1000
Unit Size:
0.1 ml
Concentration:
Please see the vial label for concentration.
Packaging:
Storage:
Store at -20 °C. Avoid freeze-thaw cycles.
Buffer:
10mM HEPES [pH 7.5], 150 mM NaCl, 100 ug/ml BSA and 50% glycerol.
Preservative:
No Preservative
Limitations:
This product is for research use only and is not approved for use in humans or in clinical diagnosis. Products are guaranteed for 6 months from date of receipt, except for peptides and proteins which are guaranteed for 3 months.
The activation of signal transduction pathways by growth factors, hormones and neurotransmitters is mediated through two closely related MAP kinases (p44 and p42), designated ERK 1 (extracellular-signal related kinase 1) and ERK 2, respectively. ERK proteins are regulated by dual phosphorylation at specific tyrosine and threonine sites, which is required for full enzymatic activation. Once activated, MAP kinases phosphorylate downstream components on serine and threonine. Upstream MAP kinase regulators include MEK and
Raf-1.
Western Blot: ERK/MAPK Phosphospecific Antibody [NB500-141] - Western blot of human T47D cell lysates showing specific immunolabeling of ~42-44k ERK/MAPK protein phosphorylated at Thr202 and Tyr204 (Control). The phosphospecificity of this labeling is shown in the second lane (lambda-phosphatase: lambda-Ptase). The blot is identical to the control except that it was incubated in lambda-Ptase (1200 units for 30 min) before being exposed to the Anti-Thr202/Tyr204 ERK/MAPK. The immunolabeling is completely eliminated by treatment with lambda-Ptase.