Revision 1
Cell Signaling Technology

Orders: 877-616-CELL (2355) [email protected]

Support: 877-678-TECH (8324)

Web: [email protected] cellsignal.com

3 Trask LaneDanversMassachusetts01923USA
For Research Use Only. Not for Use in Diagnostic Procedures.
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UniProt ID:

#P27361, #P28482

Entrez-Gene Id:

5595, 5594

Product Includes Quantity Reactivity MW(kDa) Isotype
Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb 4370 200 µl H M R Hm Mk Mi Dm Z B Dg Pg Sc 44, 42 Rabbit IgG
p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb 4695 200 µl H M R Hm Mk Mi Dm Z B Dg Pg Ce 42, 44 Rabbit IgG

Please visit cellsignal.com for individual component applications, species cross-reactivity, dilutions, protocols, and additional product information.

Description

PhosphoPlus® Duets from Cell Signaling Technology (CST) provide a means to assess protein activation status. Each Duet contains an activation-state and total protein antibody to your target of interest. These antibodies have been selected from CST's product offering based upon superior performance in specified applications.

Storage

Supplied in 10 mM sodium HEPES (pH 7.5), 150 mM NaCl, 100 µg/ml BSA, 50% glycerol and less than 0.02% sodium azide. Store at –20°C. Do not aliquot the antibody.

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.

  1. Roux, P.P. and Blenis, J. (2004) Microbiol Mol Biol Rev 68, 320-44.
  2. Baccarini, M. (2005) FEBS Lett 579, 3271-7.
  3. Meloche, S. and Pouysségur, J. (2007) Oncogene 26, 3227-39.
  4. Roberts, P.J. and Der, C.J. (2007) Oncogene 26, 3291-310.
  5. Rubinfeld, H. and Seger, R. (2005) Mol Biotechnol 31, 151-74.
  6. Murphy, L.O. and Blenis, J. (2006) Trends Biochem Sci 31, 268-75.
  7. Dalby, K.N. et al. (1998) J Biol Chem 273, 1496-505.
  8. Marais, R. et al. (1993) Cell 73, 381-93.
  9. Kortenjann, M. et al. (1994) Mol Cell Biol 14, 4815-24.
  10. Owens, D.M. and Keyse, S.M. (2007) Oncogene 26, 3203-13.

Background References

    Trademarks and Patents

    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    PhosphoPlus is a registered trademark of Cell Signaling Technology, Inc.
    All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

    使用に関する制限

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    Revision 1
    #8201

    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet

    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 1 Expand Image
    Simple Western™ analysis of lysates (0.1 mg/mL) from serum-starved HeLa cells treated with TPA (400 nM, 4 hours) using Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb #4370. The virtual lane view (left) shows the target bands (as indicated) at 1:10 and 1:50 dilutions of primary antibody. The corresponding electropherogram view (right) plots chemiluminescence by molecular weight along the capillary at 1:10 (blue line) and 1:50 (green line) dilutions of primary antibody. This experiment was performed under reducing conditions on the Jess™ Simple Western instrument from ProteinSimple, a BioTechne brand, using the 12-230 kDa separation module.
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 2 Expand Image
    Immunoprecipitation of Jurkat cell extracts. Lane 1 is 10% input, lane 2 is Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, and lane 3 is p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb. Western blot analysis was performed using p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb. Mouse Anti-Rabbit IgG (Light-Chain Specific) (D4W3E) mAb (HRP Conjugate) #93702 was used as a secondary antibody.
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 3 Expand Image
    Western blot analysis of extracts from COS cells, untreated or treated with either U0126 #9903 (10 µM for 1h) or TPA #4174 (200 nM for 10 m), using Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb #4370 and p44/42 MAPK (Erk1/2) (3A7) Mouse mAb #9107.
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 4 Expand Image
    Western blot analysis of extracts from various cell lines using p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb.
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 5 Expand Image
    Western blot analysis of extracts from 293, NIH/3T3 and C6 cells, treated with λ phosphatase or TPA #4174 as indicated, using Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb (upper), or p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb #4695 (lower).
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 6 Expand Image
    Western blot analysis of extracts from Hek 293 cells, transfected with 100 nM SignalSilence® Control siRNA (Fluorescein Conjugate) #6201 (-) or SignalSilence® p44/42 MAPK (Erk1/2) siRNA (+), using p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb #4695 and α-Tubulin (11H10) Rabbit mAb #2125. The p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb confirms silencing of p44/42 expression and α-Tubulin (11H10) Rabbit mAb is used to control for loading and specificity of p44/42 MAPK (Erk1/2) siRNA.
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 7 Expand Image
    Immunohistochemical analysis of paraffin-embedded human breast carcinoma using Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb.
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 8 Expand Image
    Immunohistochemical analysis of paraffin-embedded human breast carcinoma, showing cytoplasmic and nuclear localization, using p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb.
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 9 Expand Image
    Immunohistochemical analysis of paraffin-embedded human lung carcinoma, untreated (left) or λ phosphatase-treated (right), using Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb.
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 10 Expand Image
    Immunohistochemical analysis of paraffin-embedded human colon carcinoma, using p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb.
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 11 Expand Image
    Immunohistochemical analysis using Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb on SignalSlide Phospho-p44/42 MAPK (Thr202/Tyr204) IHC Controls #8103 (paraffin-embedded NIH/3T3 cells, treated with U0126 #9903 (left) or TPA #4174 (right).
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 12 Expand Image
    Immunohistochemical analysis of paraffin-embedded human breast carcinoma, using p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb in the presence of control peptide (left) or #1240 p44/42 MAPK (Erk1/2) Blocking Peptide (#4695 Specific) (right).
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 13 Expand Image
    Confocal immunofluorescent analysis of Drosophila egg chambers, untreated (top) or λ phosphatase-treated (bottom), using Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb #4370 (green) and S6 Ribosomal Protein (54D2) Mouse mAb #2317 (red). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 14 Expand Image
    Confocal immunofluorescent analysis of NIH/3T3 cells, treated with either U0126 (MEK1/2 Inhibitor) #9903 (left) or PDGF (right), using p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb (green). Actin filaments have been labeled with DY-554 phalloidin (red).
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 15 Expand Image
    Confocal immunofluorescent analysis of HT1080 cells, starved overnight then treated with U0126 #9903 (10 uM, 2 h; left) or PDBu (Phorbol 12,13-Dibutyrate) #12808 (100 nM, 15 m; right) using Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb #4370 (green) and β-Actin (8H10D10) Mouse mAb #3700 (red). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 16 Expand Image
    Flow cytometric analysis of Jurkat cells, treated with U0126 (10 µM, 2 hrs; green) or treated with TPA #4174 (200 nM, 30 min; blue) using Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb (solid lines) or concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (dashed lines). Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody.
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 17 Expand Image
    Flow cytometric analysis of Jurkat cells using p44/42 MAPK (Erk1/2) (137F5) Rabbit mAb (solid line) compared to concentration-matched Rabbit (DA1E) mAb IgG XP® Isotype Control #3900 (dashed line). Anti-rabbit IgG (H+L), F(ab')₂ Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody.
    PhosphoPlus® p44/42 MAPK (Erk1/2) (Thr202/Tyr204) Antibody Duet: Image 18 Expand Image
    Immunoprecipitation of Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) from 3T3 cell extracts. Cells were treated with TPA, (200 nM, 15 min). Lane 1 is 10% input, lane 2 is Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, and lane 3 is Phospho-p44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb. Western blot was performed using Phosphop44/42 MAPK (Erk1/2) (Thr202/Tyr204) (D13.14.4E) XP® Rabbit mAb. Mouse Anti-rabbit IgG (Light-Chain Specific) (D4W3E) mAb #45262 was used as a secondary antibody.