Revision 13
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.
Applications:

WB, W-S, IHC-P, IF-F, IF-IC, FC-FP

REACTIVITY:

H M R Mk Mi Sc

SENSITIVITY:

Endogenous

MW (kDa):

32

Source/Isotype:

Rabbit IgG

UniProt ID:

#P62753

Entrez-Gene Id:

6194

Product Information

Product Usage Information

Application Dilution
Western Blotting 1:2000
Simple Western™ 1:10 - 1:50
Immunohistochemistry (Paraffin) 1:200 - 1:800
Immunofluorescence (Frozen) 1:50 - 1:100
Immunofluorescence (Immunocytochemistry) 1:50 - 1:200
Flow Cytometry (Fixed/Permeabilized) 1:50 - 1:200

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.

For a carrier free (BSA and azide free) version of this product see product #81736.

Specificity / Sensitivity

Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb detects endogenous levels of ribosomal protein S6 only when phosphorylated at Ser235 and 236. Non-specific labeling in pancreatic islets has been observed by immunofluorescence in fixed frozen mouse tissue post-processed with λ phosphatase.

Species Reactivity:

Human, Mouse, Rat, Monkey, Mink, S. cerevisiae

Species predicted to react based on 100% sequence homology

Chicken, Pig

Source / Purification

Monoclonal antibody is produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser235 and Ser236 of human ribosomal protein S6.

Background

One way that growth factors and mitogens effectively promote sustained cell growth and proliferation is by upregulating mRNA translation (1,2). Growth factors and mitogens induce the activation of p70 S6 kinase and the subsequent phosphorylation of S6 ribosomal protein. Phosphorylation of S6 ribosomal protein correlates with an increase in translation of mRNA transcripts that contain an oligopyrimidine tract in their 5' untranslated regions (2). These particular mRNA transcripts (5'TOP) encode proteins involved in cell cycle progression, as well as ribosomal proteins and elongation factors necessary for translation (2,3). Important S6 ribosomal protein phosphorylation sites include several residues (Ser235, Ser236, Ser240, and Ser244) located within a small, carboxy-terminal region of S6 protein (4,5).

  1. Dufner, A. and Thomas, G. (1999) Exp Cell Res 253, 100-9.
  2. Peterson, R.T. and Schreiber, S.L. (1998) Curr Biol 8, R248-50.
  3. Jefferies, H.B. et al. (1997) EMBO J 16, 3693-704.
  4. Ferrari, S. et al. (1991) J Biol Chem 266, 22770-5.
  5. Flotow, H. and Thomas, G. (1992) J Biol Chem 267, 3074-8.

Species Reactivity

Species reactivity is determined by testing in at least one approved application (e.g., western blot).

Western Blot Buffer

IMPORTANT: For western blots, incubate membrane with diluted primary antibody in 5% w/v BSA, 1X TBS, 0.1% Tween® 20 at 4°C with gentle shaking, overnight.

Applications Key

WB: Western Blotting W-S: Simple Western™ IHC-P: Immunohistochemistry (Paraffin) IF-F: Immunofluorescence (Frozen) IF-IC: Immunofluorescence (Immunocytochemistry) FC-FP: Flow Cytometry (Fixed/Permeabilized)

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.
Alexa Fluor is a registered trademark of Life Technologies Corporation.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

Limited Uses

Except as otherwise expressly agreed in a writing signed by a legally authorized representative of CST, the following terms apply to Products provided by CST, its affiliates or its distributors. Any Customer's terms and conditions that are in addition to, or different from, those contained herein, unless separately accepted in writing by a legally authorized representative of CST, are rejected and are of no force or effect.

Products are labeled with For Research Use Only or a similar labeling statement and have not been approved, cleared, or licensed by the FDA or other regulatory foreign or domestic entity, for any purpose. Customer shall not use any Product for any diagnostic or therapeutic purpose, or otherwise in any manner that conflicts with its labeling statement. Products sold or licensed by CST are provided for Customer as the end-user and solely for research and development uses. Any use of Product for diagnostic, prophylactic or therapeutic purposes, or any purchase of Product for resale (alone or as a component) or other commercial purpose, requires a separate license from CST. Customer shall (a) not sell, license, loan, donate or otherwise transfer or make available any Product to any third party, whether alone or in combination with other materials, or use the Products to manufacture any commercial products, (b) not copy, modify, reverse engineer, decompile, disassemble or otherwise attempt to discover the underlying structure or technology of the Products, or use the Products for the purpose of developing any products or services that would compete with CST products or services, (c) not alter or remove from the Products any trademarks, trade names, logos, patent or copyright notices or markings, (d) use the Products solely in accordance with CST Product Terms of Sale and any applicable documentation, and (e) comply with any license, terms of service or similar agreement with respect to any third party products or services used by Customer in connection with the Products.

Revision 13
#4858

Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb

Western Blotting Image 1: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Western blot analysis of extracts from serum-starved MCF7 cells, untreated (-) or treated (+) with combinations of the following treatments as indicated: human IGF-1 (100 ng/mL, 10 min) and λ phosphatase, using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb (upper) or S6 Ribosomal Protein (5G10) Rabbit mAb #2217 (lower).
Western Blotting Image 1: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Simple Western™ analysis of lysates (1 mg/mL) from serum-starved MCF-7 cells treated with human IGF-1 (100 ng/mL, 10 min) using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb #4858. The virtual lane view (left) shows the 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.
Immunohistochemistry Image 1: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded LNCaP cells, untreated (left) or LY294002-treated (right), using Phospho-S6 Ribosomal Protein (S235/236) (D57.2.2E) XP® Rabbit mAb on SignalSlide® Phospho-Akt (Ser473) IHC Controls #8101.
Immunohistochemistry Image 2: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human colon carcinoma using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb.
Immunohistochemistry Image 3: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human lung carcinoma using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb.
Immunohistochemistry Image 4: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded mouse spleen using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb.
Immunohistochemistry Image 5: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded A549 xenograft, untreated (left) or λ phosphatase-treated (right), using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb.
Immunohistochemistry Image 6: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded human breast carcinoma using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb in the presence of control peptide (left) or Phospho-S6 Ribosomal Protein (Ser235/236) Blocking Peptide #1220 (right).
Immunohistochemistry Image 7: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Immunohistochemical analysis of paraffin-embedded LNCaP cells, untreated (left) or rapamycin-treated (right), using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb.
Immunofluorescence Image 1: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Confocal immunofluorescent analysis of fixed frozen mouse hippocampus, untreated (left) or post-processed with λ phosphatase (middle), using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb (green) and, untreated (right), using S6 Ribosomal Protein (5G10) Rabbit mAb #2217 (green) and ProLong® Gold Antifade Reagent with DAPI #8961 (blue).
Immunofluorescence Image 2: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Confocal immunofluorescent analysis of fixed frozen mouse pancreas, untreated (left) or post-processed with λ phosphatase (right), using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb (green), DyLight 554 Phalloidin #13054 (red), and ProLong® Gold Antifade Reagent with DAPI #8961 (blue).
Immunofluorescence Image 1: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Confocal immunofluorescent analysis of HeLa cells, rapamycin-treated (left) or 20% serum-treated (right), using Phospho-S6 Ribosomal protein (Ser235/Ser236) (D57.2.2E) XP® Rabbit mAb (green). Actin filaments have been labeled with Alexa Fluor® 555 phalloidin (red). Blue pseudocolor = DRAQ5® #4084 (fluorescent DNA dye).
Flow Cytometry Image 1: Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb Expand Image
Flow cytometric analysis of Jurkat cells, untreated (green) or treated with LY294002 #9901, Wortmannin #9951, and U0126 #9903 (50 μM, 1 μM, and 10 μM, 2 hr; blue) using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) 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.