Revision 1

#9941Store 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-Bcl-2 (Ser70) (5H2) Rabbit mAb 2827 20 µl 28 kDa Rabbit IgG
Phospho-Bcl-2 (Thr56) Antibody 2875 20 µl 28 kDa Rabbit 
Bcl-2 (D55G8) Rabbit mAb 4223 20 µl 26 kDa Rabbit IgG
Bcl-xL (54H6) Rabbit mAb 2764 20 µl 30 kDa Rabbit IgG
Mcl-1 (D35A5) Rabbit mAb 5453 20 µl 40 (human), 35 (mouse) kDa Rabbit IgG
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 Pro-Survival Bcl-2 Family Antibody Sampler Kit provides an economical means to examine several members of the Bcl-2 family. 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

The Bcl-2 family consists of a number of evolutionarily conserved proteins containing Bcl-2 homology domains (BH) that regulate apoptosis through control of mitochondrial membrane permeability and release of cytochrome c (1-3). Four BH domains have been identified (BH1-4) that mediate protein interactions. The family can be separated into three groups based upon function and sequence homology: pro-survival members include Bcl-2, Bcl-xL, Mcl-1, A1 and Bcl-w; pro-apoptotic proteins include Bax, Bak and Bok; and "BH3 only" proteins Bad, Bik, Bid, Puma, Bim, Bmf, Noxa and Hrk. Interactions between death-promoting and death-suppressing Bcl-2 family members has led to a rheostat model in which the ratio of pro-apoptotic and anti-apoptotic proteins controls cell fate (4). Thus, pro-survival members exert their behavior by binding to and antagonizing death-promoting members. In general, the "BH3-only members" can bind to and antagonize the pro-survival proteins leading to increased apoptosis (5). While some redundancy of this system likely exists, tissue specificity, transcriptional and post-translational regulation of many of these family members can account for distinct physiological roles.
Several phosphorylation sites have been identified within Bcl-2 including Thr56, Ser70, Thr74 and Ser87 (6). These phosphorylation sites may be targets of the ASK1/MKK7/JNK1 pathway, and phosphorylation of Bcl-2 may be a marker for mitotic events (7,8). Mutation of Bcl-2 at Thr56 or Ser87 inhibits its anti-apoptotic activity during glucocorticoid-induced apoptosis of T lymphocytes (9). Interleukin 3 and JNK-induced Bcl-2 phosphorylation at Ser70 may be required for its enhanced antiapoptotic functions (10).

  1. Cory, S. et al. (2003) Oncogene 22, 8590-607.
  2. Antonsson, B. and Martinou, J.C. (2000) Exp Cell Res 256, 50-7.
  3. Sharpe, J.C. et al. (2004) Biochim Biophys Acta 1644, 107-13.
  4. Korsmeyer, S.J. et al. (1993) Semin Cancer Biol 4, 327-32.
  5. Bouillet, P. and Strasser, A. (2002) J Cell Sci 115, 1567-74.
  6. Maundrell, K. et al. (1997) J Biol Chem 272, 25238-42.
  7. Yamamoto, K. et al. (1999) Mol Cell Biol 19, 8469-78.
  8. Ling, Y.H. et al. (1998) J Biol Chem 273, 18984-91.
  9. Huang, S.T. and Cidlowski, J.A. (2002) FASEB J 16, 825-32.
  10. Deng, X. et al. (2001) J Biol Chem 276, 23681-8.

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 1
    #9941

    Pro-Survival Bcl-2 Family Antibody Sampler Kit

    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 1 Expand Image
    Simple Western™ analysis of lysates (1.0 mg/mL) from HeLa cells using Bcl-xL (54H6) Rabbit mAb #2764. The virtual lane view (left) shows a single target band (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.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 2 Expand Image
    Immunoprecipitation of Bcl-2 from ACHN extracts. Lane 1 is 10% input, lane 2 is Rabbit (DA1E) mAb IgG XP® Isotype Control #3900, and lane 3 is Bcl-2 (D55G8) Rabbit mAb. Western blot analysis was performed using Bcl-2 (124) Mouse mAb #15071. Anti-mouse IgG, HRP-linked Antibody #7076 was used as a secondary antibody.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 3 Expand Image
    Simple Western™ analysis of lysates (0.1 mg/mL) from Raji cells using Mcl-1 (D35A5) Rabbit mAb #5453. The virtual lane view (left) shows a single target band (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.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 4 Expand Image
    Western blot analysis of extracts from Jurkat and HeLa (human), COS (monkey), NIH/3T3 and L929 (mouse), and PC12 and C6 (rat) cells, using Bcl-xL (54H6) Rabbit mAb.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 5 Expand Image
    Flow cytometric analysis of THP-1 cells (blue, moderate expression) and K-562 cells (green, high expression) using Bcl-xL (54H6) Rabbit mAb (solid lines) or a 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.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 6 Expand Image
    Western blot analysis of extracts from Jurkat cells, untreated or treated with paclitaxel (1 μM, overnight) and with or without λ phosphatase, using Phospho-Bcl-2 (Ser70) (5H2) Rabbit mAb (upper) or Bcl-2 #2876 (lower).
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 7 Expand Image
    Western blot analysis of Jurkat cells, untreated or treated with paclitaxel for the indicated times, using Phospho-Bcl-2 (Thr56) Antibody (top) or Bcl-2 Antibody #2872 (bottom).
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 8 Expand Image
    Western blot analysis of control HeLa cells (lane 1) or Bcl-2 knockout HeLa cells (lane 2) using Bcl-2 (D55G8) Rabbit mAb #4223 (upper), or β-actin (13E5) Rabbit mAb #4970 (lower). The absence of signal in the Bcl-2 knockout HeLa cells confirms the specificity of the antibody for Bcl-2.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 9 Expand Image
    Western blot analysis of extracts from various cell lines using Mcl-1 (D35A5) Rabbit mAb.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 10 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.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 11 Expand Image
    Western blot analysis of extracts from HeLa cells, transfected with 100 nM SignalSilence® Control siRNA (Unconjugated) #6568 (-), SignalSilence® BcL-xL siRNA I (+) or SignalSilence® Bcl-xL siRNA II #6363 (+), using Bcl-xL (54H6) Rabbit mAb #2764 (upper) or α-Tubulin (11H10) Rabbit mAb #2125 (lower). The Bcl-xL (54H6) Rabbit mAb confirms silencing of Bcl-xL expression, while the α-Tubulin (11H10) Rabbit mAb is used as a loading control.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 12 Expand Image
    Western blot analysis of extracts from various cell lines using Bcl-2 (D55G8) Rabbit mAb.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 13 Expand Image
    Western blot analysis of extracts from 293T cells, mock transfected or transfected with human or mouse Mcl-1 constructs, using Mcl-1 (D35A5) Rabbit mAb.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 14 Expand Image
    Immunoprecipitation of Bcl-xL from Jurkat cell extracts, using Bcl-xL (54H6) Rabbit mAb. Lane 1 is the lysate control, lane 2 is antibody alone and lane 3 is antibody plus lysate.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 15 Expand Image
    Immunohistochemical analysis of paraffin-embedded human lung carcinoma, using Bcl-xL (54H6) Rabbit mAb.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 16 Expand Image
    Flow cytometric analysis of Jurkat cells using Phospho-Bcl-2 (Ser70) (5H2) Rabbit mAb and Propidium Iodide (PI)/RNase Staining Solution #4087 to measure DNA content. Anti-rabbit IgG (H+L), F(ab')2 Fragment (Alexa Fluor® 488 Conjugate) #4412 was used as a secondary antibody.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 17 Expand Image
    Immunohistochemical analysis of paraffin-embedded human colon carcinoma, using Bcl-xL (54H6) Rabbit mAb in the presence of control peptide (left) or Bcl-xL Blocking Peptide #1225 (right).
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 18 Expand Image
    Immunohistochemical analysis of paraffin-embedded human prostate carcinoma, showing cytoplasmic localization, using Bcl-xL (54H6) Rabbit mAb.
    Pro-Survival Bcl-2 Family Antibody Sampler Kit: Image 19 Expand Image
    Confocal immunofluorescent analysis of HeLa cells using Bcl-xL (54H6) Rabbit mAb (green). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).