Cell Signaling Technology

Product Pathways - Protein Translation

Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb (Biotinylated) #3945


No. Size Price
3945S 100 µl ( 10 western blots ) ¥4,264.00 现货查询 购买询价 防伪查询
3945 carrier free & custom formulation / quantityemail request
Applications Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
W 1:1000 Human,Mouse,Rat,Monkey,Mink,S. cerevisiae, Endogenous 32 Rabbit IgG

Species cross-reactivity is determined by western blot.

Applications Key: W=Western Blotting,


Species predicted to react based on 100% sequence homology: Chicken, Pig,

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.

Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb兔单抗检测仅在serine 235和236位点磷酸化的内源性核糖体蛋白S6。

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.



This Cell Signaling Technology (CST) antibody is conjugated to biotin under optimal conditions and tested in-house by Western Blot and flow cytometric analysis of human cells. The antibody is expected to exhibit the same species cross-reactivity as the unconjugated antibody (Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb #4858).

Cell Signaling Technology抗体在最优条件下偶联生物素,并且使用免疫印迹(Western Blot)和流式细胞术在内部检测人类细胞。这个抗体与未接合的抗体(Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb兔单抗 #4858)具有同样的物种间交叉反应活性。

Flow Cytometry

Flow Cytometry

Flow cytometric analysis of Jurkat cells, untreated (green) or treated with LY294002 #9901, Wortmannin #9951, and U0126 #9903 (blue), using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb (Biotinylated).

使用Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb兔单抗 (生物素标记),流式细胞术分析Jurkat细胞,细胞分为未处理组(绿色)和LY294002 #9901, Wortmannin #9951, 和U0126 #9903处理组(蓝色)。

Western Blotting

Western Blotting

Western Blot analysis of extracts from HeLa cells, either untreated or treated with insulin alone or insulin and phosphatase, using Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb (Biotinylated).

使用Phospho-S6 Ribosomal Protein (Ser235/236) (D57.2.2E) XP® Rabbit mAb兔单抗 (生物素标记),免疫印迹(Western Blot)分析HeLa细胞,分为对照组,胰岛素单独处理或胰岛素加磷酸酶组。


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 the 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 the S6 protein (4,5).

生长因子和有丝分裂原有效促进维持细胞生长和增殖的一个方面就是通过上调mRNA翻译(1,2)。生长因子和有丝分裂原能诱导p70 S6激酶的激活和随后S6核糖体蛋白的磷酸化。S6核糖体蛋白的磷酸化与mRNA转录本的翻译增加有关,而这个mRNA转录本是在5端非翻译区含有一个寡嘧啶区(2)。这些特殊的mRNA转录本 (5'TOP) 能够编码涉及细胞周期进程的蛋白质如翻译必须的核糖体蛋白和延伸因子(2,3)。重要的S6核糖体蛋白的磷酸化位点包含数个定位在S6蛋白一个小的羧基末端区域残基(Ser235, Ser236, Ser240, and Ser244) (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.

Application References

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For Research Use Only. Not For Use In Diagnostic Procedures.

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

XP is a registered trademark of Cell Signaling Technology, Inc.

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

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