Home  >  Products  >  MAP Kinase p44/42, phosphorylated (Thr202/Tyr204) (MAPK3/MAPK1, Mitogen-activated Protein Kinase 1, MAP Kinase 1, MAPK 1, ERT1, Extracellular Signal-regulated Kinase 2, ERK-2, MAP Kinase Isoform p42, p42-MAPK, Mitogen-activated Protein Kinase 2, MAP Kinas

MAP Kinase p44/42, phosphorylated (Thr202/Tyr204) (MAPK3/MAPK1, Mitogen-activated Protein Kinase 1, MAP Kinase 1, MAPK 1, ERT1, Extracellular Signal-regulated Kinase 2, ERK-2, MAP Kinase Isoform p42, p42-MAPK, Mitogen-activated Protein Kinase 2, MAP Kinas

Cat no: M2352-20F


Supplier: United States Biological
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Mitogen-activated protein kinases (MAPKs) are a widely conserved family of serine/threonine protein kinases involved in many cellular programs such as cell proliferation, differentiation, motility, and death. The p44/42 MAPK (Erk1/2) signaling pathway can be activated in response to a diverse range of extracellular stimuli including mitogens, growth factors, and cytokines (1-3) and is an important target in the diagnosis and treatment of cancer (4). Upon stimulation, a sequential three-part protein kinase cascade is initiated, consisting of a MAP kinase kinase kinase (MAPKKK or MAP3K), a MAP kinase kinase (MAPKK or MAP2K), and a MAP kinase (MAPK). Multiple p44/42 MAP3Ks have been identified, including members of the Raf family as well as Mos and Tpl2/Cot. MEK1 and MEK2 are the primary MAPKKs in this pathway (5,6). MEK1 and MEK2 activate p44 and p42 through phosphorylation of activation loop residues Thr202/Tyr204 and Thr185/Tyr187, respectively. Several downstream targets of p44/42 have been identified, including p90RSK (7) and the transcription factor Elk-1 (8,9). p44/42 are negatively regulated by a family of dual-specificity (Thr/Tyr) MAPK phosphatases, known as DUSPs or MKPs (10), along with MEK inhibitors such as U0126 and PD98059. Applications: Suitable for use in Flow cytometry. Other applications have not been tested. Recommended Dilutions: Flow Cytometry 1:10. Use 10ul to label 500,000 cells in 90ul PBS/0.5% BSA. Optimal dilutions to be determined by the researcher. Storage and Stability: Store at 4 degrees C before opening. DO NOT FREEZE. This product is stable at 4 degrees C as an undiluted liquid. Dilute only prior to immediate use. Freezing Alexa Fluor(R) 488 conjugates will result in a substantial loss of enzymatic activity.
Catalogue number: M2352-20F
Reactivities: Human, Mouse, Rat, Bovine, Drosophila/Arthropod, Non-Human Primate, Porcine, Zebrafish/Fish
Hosts: Rabbit
Applications: Flow Cytometry
Size: 500ul
Form: Supplied as a liquid in 10mM sodium HEPES, pH 7.5, 150mM sodium chloride, 100ug/ml BSA, 50% glycerol, 0.02% sodium azide.
P type: Mab
Isotype: IgG
Purity: Purified
References: Roux, P.P. and Blenis, J. (2004) Microbiol Mol Biol Rev 68, 320-44.Baccarini, M. (2005) FEBS Lett 579, 3271-7.Meloche, S. and Pouyssegur, J. (2007) Oncogene 26, 3227-39.Roberts, P.J. and Der, C.J. (2007) Oncogene 26, 3291-310.Rubinfeld, H. and Seger, R. (2005) Mol Biotechnol 31, 151-74.Murphy, L.O. and Blenis, J. (2006) Trends Biochem Sci 31, 268-75.Dalby, K.N. et al. (1998) J Biol Chem 273, 1496-505.Marais, R. et al. (1993) Cell 73, 381-93.Kortenjann, M. et al. (1994) Mol Cell Biol 14, 4815-24.Owens, D.M. and Keyse, S.M. (2007) Oncogene 26, 3203-13.
Additional info: Recognizes endogenous levels of p44 and p42 MAP Kinase (Erk1 and Erk2) when either dually phosphorylated at Thr202 and Tyr204 of Erk1 (Thr185 and Tyr187 of Erk2), or singly phosphorylated at Thr202. Does not cross-react with the corresponding phosphorylated residues of either JNK/SAPK or p38 MAP kinases. Species crossreactivity: human, mouse, rat, monkey, porcine, hamster, bovine, D.melanogaster and zebrafish.

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