Revision 1

#2330Store at -20C

1 Kit

(8 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-A-Raf (Ser299) Antibody 4431 20 µl 68 kDa Rabbit 
A-Raf Antibody 4432 20 µl 68 kDa Rabbit 
Phospho-c-Raf (Ser338) (56A6) Rabbit mAb 9427 20 µl 74 kDa Rabbit IgG
Phospho-c-Raf (Ser289/296/301) Antibody 9431 20 µl 74 kDa Rabbit 
Phospho-c-Raf (Ser259) Antibody 9421 20 µl 74 kDa Rabbit 
c-Raf (D5X6R) Mouse mAb 12552 20 µl 75 kDa Mouse IgG1
Phospho-B-Raf (Ser445) Antibody 2696 20 µl 86 kDa Rabbit 
B-Raf (55C6) Rabbit mAb 9433 20 µl 86 kDa Rabbit IgG
Anti-rabbit IgG, HRP-linked Antibody 7074 100 µl Goat 
Anti-mouse IgG, HRP-linked Antibody 7076 100 µl Horse 

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

Description

The Raf Family Antibody Sampler Kit provides a fast and economical means to investigate Raf signaling. The kit contains enough primary and secondary antibody 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

A-Raf, B-Raf, and c-Raf (Raf-1) are the main effectors recruited by GTP-bound Ras to activate the MEK-MAP kinase pathway (1). Activation of c-Raf is the best understood and involves phosphorylation at multiple activating sites, including Ser338, Tyr341, Thr491, Ser494, Ser497, and Ser499 (2). p21-activated kinase (PAK) has been shown to phosphorylate c-Raf at Ser338, and the Src family phosphorylates Tyr341 to induce c-Raf activity (3,4). Ser338 of c-Raf corresponds to similar sites in A-Raf (Ser299) and B-Raf (Ser445), although this site is constitutively phosphorylated in B-Raf (5). Inhibitory 14-3-3 binding sites on c-Raf (Ser259 and Ser621) can be phosphorylated by Akt and AMPK, respectively (6,7). While A-Raf, B-Raf, and c-Raf are similar in sequence and function, differential regulation has been observed (8). Of particular interest, B-Raf contains three consensus Akt phosphorylation sites (Ser364, Ser428, and Thr439) and lacks a site equivalent to Tyr341 of c-Raf (8,9). Research studies have shown that the B-Raf mutation V600E results in elevated kinase activity and is commonly found in malignant melanoma (10). Six residues of c-Raf (Ser29, Ser43, Ser289, Ser296, Ser301, and Ser642) become hyperphosphorylated in a manner consistent with c-Raf inactivation. The hyperphosphorylation of these six sites is dependent on downstream MEK signaling and renders c-Raf unresponsive to subsequent activation events (11).

  1. Avruch, J. et al. (1994) Trends Biochem Sci 19, 279-83.
  2. Chong, H. et al. (2001) EMBO J 20, 3716-27.
  3. King, A.J. et al. (1998) Nature 396, 180-3.
  4. Fabian, J.R. et al. (1993) Mol Cell Biol 13, 7170-9.
  5. Mason, C.S. et al. (1999) EMBO J 18, 2137-48.
  6. Zimmermann, S. and Moelling, K. (1999) Science 286, 1741-4.
  7. Sprenkle, A.B. et al. (1997) FEBS Lett 403, 254-8.
  8. Marais, R. et al. (1997) J Biol Chem 272, 4378-83.
  9. Guan, K.L. et al. (2000) J Biol Chem 275, 27354-9.
  10. Davies, H. et al. (2002) Nature 417, 949-54.
  11. Dougherty, M.K. et al. (2005) Mol Cell 17, 215-24.

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.

    使用に関する制限

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    Revision 1
    #2330

    Raf Family Antibody Sampler Kit

    Raf Family Antibody Sampler Kit: Image 1 Expand Image
    Western blot analysis of extracts from various cell lines using c-Raf (D5X6R) Mouse mAb.
    Raf Family Antibody Sampler Kit: Image 2 Expand Image
    Western blot analysis of extracts from Raji and HeLa cells treated with TPA (200nM, 30 minutes) using Phospho-B-Raf (Ser445) Antibody (top) and total B-Raf Antibody (bottom).
    Raf Family Antibody Sampler Kit: Image 3 Expand Image
    Western blot analysis of extracts from Raji and HeLa cells, untreated or TPA-treated (30 minutes), using Phospho-A-Raf (Ser299) Antibody (upper) or A-Raf Antibody, #4432 (lower).
    Raf Family Antibody Sampler Kit: Image 4 Expand Image
    Western blot analysis of extracts from HT-29, NIH-3T3 and C6 cell lysates, using A-Raf Antibody.
    Raf Family Antibody Sampler Kit: Image 5 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.
    Raf Family Antibody Sampler Kit: Image 6 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.
    Raf Family Antibody Sampler Kit: Image 7 Expand Image
    Western blot analysis of extracts from HeLa cells, untreated or TPA-treated, using Phospho-c-Raf (Ser259) Antibody (upper), or a total c-Raf antibody (lower).
    Raf Family Antibody Sampler Kit: Image 8 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.
    Raf Family Antibody Sampler Kit: Image 9 Expand Image
    Western blot analysis of extracts from untreated or TPA-treated 293 and NIH/3T3 cells, using Phospho-c-Raf (Ser289/296/301) Antibody.
    Raf Family Antibody Sampler Kit: Image 10 Expand Image
    Western blot analysis of extracts from HeLa, C2C12 and NBT-II cells, using B-Raf (55C6) Rabbit mAb.
    Raf Family Antibody Sampler Kit: Image 11 Expand Image
    Site specificity of Phospho-c-Raf (Ser259) Antibody: Western blot analysis of recombinant Myc-tagged c-Raf protein, wild-type (lanes 1 and 3) and S259A mutant (lanes 2 and 4), using Phospho-Raf (Ser259) Antibody or a Myc antibody. (Provided by Dr. Guri Tzivion, Massachusetts General Hospital.)