| Product Includes | Product # | Quantity | Mol. Wt | Isotype/Source |
|---|---|---|---|---|
| Phospho-c-Raf (Ser338) (56A6) Rabbit mAb | 9427 | 20 µl | 74 kDa | Rabbit IgG |
| Phospho-MEK1/2 (Ser217/221) (41G9) Rabbit mAb | 9154 | 20 µl | 45 kDa | Rabbit IgG |
| Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb | 4370 | 20 µl | 44, 42 kDa | Rabbit IgG |
| Phospho-p90RSK (Ser380) (D3H11) Rabbit mAb | 11989 | 20 µl | 90 kDa | Rabbit IgG |
| Phospho-MSK1 (Thr581) Antibody | 9595 | 20 µl | 90 kDa | Rabbit |
| Anti-rabbit IgG, HRP-linked Antibody | 7074 | 100 µl | Goat |
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Description
The Phospho-Erk1/2 Pathway Antibody Sampler Kit provides an economical means of evaluating multiple members of the Erk pathway as well as their activation state. The kit contains enough primary and secondary antibodies to perform two Western blot experiments.
Storage
Background
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 research investigators consider it 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.
- 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 Pouysségur, 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.
Background References
Trademarks and Patents
Limited Uses
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