Revision 7

#9911Store at -20C

1 Kit

(5 x 20 microliters)

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.
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 

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

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

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.
    All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

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    Revision 7
    #9911

    Phospho-Erk1/2 Pathway Antibody Sampler Kit

    Phospho-Erk1/2 Pathway Antibody Sampler Kit: 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.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 2 Expand Image
    Western blot analysis of extracts from various cell lines, starved overnight and either untreated (-) or treated (+) with TPA #4174 (200 nM, 15 min), Human Epidermal Growth Factor (hEGF) #8916 (100 ng/mL, 15 min), or Human Platelet-Derived Growth Factor BB (hPDGF-BB) #8912 (100 ng/mL, 15 min) as indicated, using Phospho-p90RSK (Ser380) (D3H11) Rabbit mAb.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: 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.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 4 Expand Image
    After the primary antibody is bound to the target protein, a complex with HRP-linked secondary antibody is formed. The LumiGLO® is added and emits light during enzyme catalyzed decomposition.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 5 Expand Image
    Western blot analysis of extracts from untreated or TPA-treated HeLa and NIH/3T3 cells, using Phospho-MEK1/2 (Ser217/221) (41G9) Rabbit mAb (upper), or MEK1/2 Antibody #9122 (lower).
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 6 Expand Image
    Western blot analysis of extracts from NIH3T3, HeLa and COS cells, untreated or treated with TPA, using Phospho-c-Raf (Ser338) (56A6) Rabbit mAb.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 7 Expand Image
    Western blot analysis of extracts from 293 cells, transfected with wt MSK1 or mutant MSK1, untreated or TPA-treated (200 nM), using Phospho-MSK1 (Thr581) Antibody.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 8 Expand Image
    Immunohistochemical analysis of paraffin-embedded human colon carcinoma, control (left) or λ phosphatase-treated (right), using Phospho-p90RSK (Ser380) (D3H11) Rabbit mAb.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 9 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).
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 10 Expand Image
    Western blot analysis of extracts from 293 cells, untreated, UV-treated or calyculin A-treated, using Phospho-MSK1 (Thr581) Antibody.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 11 Expand Image
    Immunohistochemical analysis of paraffin-embedded human ovarian carcinoma using Phospho-p90RSK (Ser380) (D3H11) Rabbit mAb.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 12 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.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 13 Expand Image
    Western blot analysis of extracts from 293 cells untreated or treated with UV and HeLa cells untreated or treated with calyculin A, using Phospho-MSK1 (Thr581) Antibody.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 14 Expand Image
    Immunohistochemical analysis of paraffin-embedded HeLa cell pellets, untreated (left) or treated with TPA #4174 (right), using Phospho-p90RSK (Ser380) (D3H11) Rabbit mAb.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 15 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.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 16 Expand Image
    Confocal immunofluorescent analysis of NIH/3T3 cells, serum-starved (left), treated with TPA #4174 (200 nM, 15 min; center), or treated with TPA followed by λ phosphatase (right), using Phospho-p90RSK (Ser380) (D3H11) Rabbit mAb (green). Actin filaments were labeled with DY-554 phalloidin (red). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 17 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).
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 18 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).
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 19 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).
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 20 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.
    Phospho-Erk1/2 Pathway Antibody Sampler Kit: Image 21 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.