Revision 1

#7272Store at +4C

 

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Species Cross Reactivity

H M

UniProt ID:

#Q16539, #P40763, #Q04206, #P31749, #Q02750

Entrez-Gene Id:

#1432, #6774, #5970, #207, #5604

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 Color Storage Temp
Signaling Nodes Multi-Target 61263 96 tests +4C
TMB Substrate 7004 11 ml Colorless +4C
STOP Solution 7002 11 ml Colorless +4C
Sealing Tape 54503 2 ea +4C
ELISA Wash Buffer (20X) 9801 25 ml Colorless +4C
ELISA Sample Diluent 11083 25 ml Blue +4C
Cell Lysis Buffer (10X) 9803 15 ml Yellowish -20C

*The microwell plate is supplied as 12 8-well modules - Each module is designed to break apart for 8 tests.

Description

CST's PathScan® Signaling Nodes Multi-Target Sandwich ELISA Kit is a solid phase sandwich enzyme-linked immunosorbent assay (ELISA) that combines the reagents necessary to detect endogenous levels of Akt1, phospho-Akt1 (Ser473), phospho-MEK1 (Ser217/221), phospho-p38 MAPK (Thr180/Tyr182), phospho-Stat3 (Tyr705) and phospho-NF-κB p65 (Ser536). These molecules represent convergence points and key regulatory proteins in signaling pathways controlling cellular events such as growth and differentiation, energy homeostasis, and the response to stress and inflammation. Sixteen tests are provided for each target protein. Specific assay formulations for the indicated target proteins can be found in the datasheets associated with the individual PathScan® Sandwich ELISA Kits*. Briefly, a capture antibody has been coated onto the microwells. After incubation with cell lysates, the target protein is captured by the coated antibody. Following extensive washing, a detection antibody is added to detect the captured target protein. An HRP-linked secondary antibody is then used to recognize the bound detection antibody. HRP substrate, TMB, is added to develop color. The magnitude of absorbance for this developed color is proportional to the quantity of bound target protein.
Antibodies in kit are custom formulations specific to kit.
*See companion products.

Specificity/Sensitivity

CST's PathScan® Signaling Nodes Multi-Target Sandwich ELISA Kit #7272 detects endogenous levels of six proteins: Akt1, phospho-Akt1 (Ser473), phospho-MEK1 (Ser217/221), phospho-p38 MAPK (Thr180/Tyr182), phospho-Stat3 (Tyr705) and phospho-NF-κB p65 (Ser536). Differential phosphorylation of these proteins can be observed over time in response to various growth factor and cytokine treatments, as shown in Figure 1.
The relationship between the protein concentration of the lysate and the absorbance at 450 nm can be found in the datasheets associated with the individual PathScan® Sandwich ELISA Kits*. *See companion products.
This kit detects proteins from the indicated species, as determined through in-house testing, but may also detect homologous proteins from other species.

Background

Akt is a protooncogene with a critical regulatory role in diverse cellular processes including growth, survival and the cell cycle. Akt is also a major regulator of insulin signaling and glucose metabolism (1-4). Akt is activated by PI3 kinase signaling and activation loop phosphorylation at Thr308 by PDK1 and by phosphorylation withing the carboxyl terminus at Ser473 by PDK2 (5-7).
MEK1 and MEK2 are dual-specificity protein kinases that function in a mitogen activated protein kinase cascade controlling cell growth and differentiation. Activation of MEK1 and MEK2 occurs through phosphorylation of serine 217 and serine 221 by Raf-like molecules. MEK activates p44 and p42 MAP kinase (8-10).
p38 MAP kinase (MAPK) participates in a signaling cascade controlling the cellular response to pro-inflammatory cytokines and a variety of cellular stresses. MKK3, MKK6 and SEK (MKK4) activate p38 MAP kinase by phosphorylation at Thr180 and Tyr182 (11-14).
The Stat3 transcription factor is an important signaling molecule for many cytokines and growth factor receptors. Stat3 is activated by phosphorylation at Tyr705, which induces dimerization, nuclear translocation and DNA binding (15,16).
Transcription factors of the nuclear factor κB (NF-κB)/Rel family play a pivotal role in inflammation, stress and immune responses. There are five family members in mammals: RelA/p65, c-Rel, RelB, NF-κB1 (p105/p50) and NF-κB2 (p100/p52). These proteins function as dimeric transcription factors. In unstimulated cells, NF-κB/Rel proteins are sequestered in the cytoplasm and inhibited by the IκB proteins. NF-κB-activating agents induce phosphorylation of IκB's, targeting them for degradation and thereby releasing the NF-κB/Rel complexes. Active NF-κB/Rel complexes are further activated by phosphorylation (17-20).

  1. Kim, D. and Chung, J. (2002) J Biochem Mol Biol 35, 106-15.
  2. Zdychová, J. and Komers, R. (2005) Physiol Res 54, 1-16.
  3. Song, G. et al. J Cell Mol Med 9, 59-71.
  4. Manning, B.D. and Cantley, L.C. (2007) Cell 129, 1261-74.
  5. Alessi, D.R. et al. (1996) EMBO J 15, 6541-51.
  6. Sarbassov, D.D. et al. (2005) Science 307, 1098-101.
  7. Jacinto, E. et al. (2006) Cell 127, 125-37.
  8. Alessi, D.R. et al. (1994) EMBO J 13, 1610-9.
  9. McKay, M.M. and Morrison, D.K. (2007) Oncogene 26, 3113-21.
  10. Pearson, G. et al. (2001) Endocr Rev 22, 153-83.
  11. Raingeaud, J. et al. (1995) J Biol Chem 270, 7420-6.
  12. Raman, M. et al. (2007) Oncogene 26, 3100-12.
  13. Zarubin, T. and Han, J. (2005) Cell Res 15, 11-18.
  14. Roux, P.P. and Blenis, J. (2004) Microbiol Mol Biol Rev 68, 320-44.
  15. O'Shea, J.J. et al. (2002) Cell 109 Suppl, S121-31.
  16. Kaptein, A. et al. (1996) J Biol Chem 271, 5961-4.
  17. Ghosh, S. and Karin, M. (2002) Cell 109 Suppl, S81-96.
  18. DiDonato, J. et al. (1996) Mol Cell Biol 16, 1295-304.
  19. Sakurai, H. et al. (1999) J Biol Chem 274, 30353-6.
  20. Mattioli, I. et al. (2004) J Immunol 172, 6336-44.

Background References

    Cross-Reactivity Key

    H: human M: mouse R: rat Hm: hamster Mk: monkey Vir: virus Mi: mink C: chicken Dm: D. melanogaster X: Xenopus Z: zebrafish B: bovine Dg: dog Pg: pig Sc: S. cerevisiae Ce: C. elegans Hr: horse GP: Guinea Pig Rab: rabbit All: all species expected

    Trademarks and Patents

    Cell Signaling Technology is a trademark of Cell Signaling Technology, Inc.
    PathScan 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.

    使用に関する制限

    法的な権限を与えられたCSTの担当者が署名した書面によって別途明示的に合意された場合を除き、 CST、その関連会社または代理店が提供する製品には以下の条件が適用されます。お客様が定める条件でここに定められた条件に含まれるものを超えるもの、 または、ここに定められた条件と異なるものは、法的な権限を与えられたCSTの担当者が別途書面にて受諾した場合を除き、拒絶され、 いかなる効力も効果も有しません。

    研究専用 (For Research Use Only) またはこれに類似する表示がされた製品は、 いかなる目的についても FDA または外国もしくは国内のその他の規制機関により承認、認可または許可を受けていません。 お客様は製品を診断もしくは治療目的で使用してはならず、また、製品に表示された内容に違反する方法で使用してはなりません。 CST が販売または使用許諾する製品は、エンドユーザーであるお客様に対し、使途を研究および開発のみに限定して提供されるものです。 診断、予防もしくは治療目的で製品を使用することまたは製品を再販売 (単独であるか他の製品等の一部であるかを問いません) もしくはその他の商業的利用の目的で購入することについては、CST から別途許諾を得る必要があります。 お客様は以下の事項を遵守しなければなりません。(a) CST の製品 (単独であるか他の資材と一緒であるかを問いません) を販売、使用許諾、貸与、寄付もしくはその他の態様で第三者に譲渡したり使用させたりしてはなりません。また、商用の製品を製造するために CST の製品を使用してはなりません。(b) 複製、改変、リバースエンジニアリング、逆コンパイル、 分解または他の方法により製品の構造または技術を解明しようとしてはなりません。また、 CST の製品またはサービスと競合する製品またはサービスを開発する目的で CST の製品を使用してはなりません。(c) CST の製品の商標、商号、ロゴ、特許または著作権に関する通知または表示を除去したり改変したりしてはなりません。(d) CST の製品をCST 製品販売条件(CST’s Product Terms of Sale) および該当する書面のみに従って使用しなければなりません。(e) CST の製品に関連してお客様が使用する第三者の製品またはサービスに関する使用許諾条件、 サービス提供条件またはこれに類する合意事項を遵守しなければなりません。

    Revision 1
    #7272

    PathScan® Signaling Nodes Multi-Target Sandwich ELISA Kit

    PathScan® Signaling Nodes Multi-Target Sandwich ELISA Kit: Image 1 Expand Image
    Figure 1. Treatment of NIH/3T3 cells with PDGF (A), TNFα/IL-1β (B) or IL-6 (C) induces differential phosphorylation of Akt1 at Ser473, Stat3 at Tyr705, p38α MAPK at Thr180/Tyr182, MEK1 at Ser217/221 and NF-κB p65 at Ser536 as detected by the PathScan® Signaling Nodes Multi-Target Sandwich ELISA Kit #7272. While dynamic changes in phosphorylation are observed throughout the time course, the level of total Akt, MEK1, Stat3, p38α MAPK and NF-κB p65 remains unchanged as demonstrated by sandwich ELISA and Western analysis. NIH/3T3 cells (80-90% confluent) were starved overnight and stimulated with either PDGF (100 ng/mL) or IL-6 (100 ng/mL) for 5, 10, 20, 40 and 80 minutes at 37ºC. For simultaneous treatment with TNF-α and IL-1β, exponentially growing cultures of NIH/3T3 (80-90% confluent) were treated for the indicated times at 37ºC with 20 ng/mL TNF-α and 10 ng/mL IL-1β. Lysates were assayed at a protein concentration of 0.45 mg/mL. The absorbance readings at 450 nm are shown as a 3-dimensional representation in the left figure, while the corresponding Western blots are shown in the right figure. The antibodies used for the Western analyses include Akt Antibody #9272, Phospho-Akt (Ser473) (193H12) Rabbit mAb #4058, MEK1 (61B12) Mouse mAb #2352, Phospho-MEK1/2 (Ser217/221) Antibody #9121, Stat3 Antibody #9132, Phospho-Stat3 (Tyr705) (3E2) Mouse mAb #9138, p38 MAP Kinase Antibody #9218, Phospho-p38 MAPK (Thr180/Tyr182) (28B10) Mouse mAb #9216, NF-κB p65 Antibody #3034 and Phospho-NF-κB p65 (Ser536) (93H1) Rabbit mAb #3033.
    PathScan® Signaling Nodes Multi-Target Sandwich ELISA Kit: Image 2 Expand Image
    Figure 2. Schematic representation of a 96-well plate depicting the color-code of the reagents used to detect endogenous levels of Akt1 (red; 1 & 2), Phospho-Akt1 (Ser473) (tan; 3 & 4), Phospho-MEK1 (Ser217/221) (green; 5 & 6), Phospho-p38 MAPK (Thr180/Tyr182) (yellow; 7 & 8), Phospho-Stat3 (Tyr705) (dark pink; 9 & 10) and Phospho-NF-κB p65 (Ser536) (orange; 11 & 12).