Cell Signaling Technology

Product Pathways - Protein Translation

Phospho-S6 Ribosomal Protein (Ser240/244) Antibody #2215

ps6   ribosomal   ribosomal protein   ribosome   rps6  

No. Size Price
2215S 100 µl ( 10 western blots ) ¥4,050.00 现货查询 购买询价 防伪查询
2215 carrier free & custom formulation / quantityemail request
Applications Dilution Species-Reactivity Sensitivity MW (kDa) Isotype
W 1:1000 Human,Mouse,Rat,Monkey,Zebrafish, Endogenous 32 Rabbit
IP 1:50

Species cross-reactivity is determined by western blot.

Applications Key: W=Western Blotting, IP=Immunoprecipitation,


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

Specificity / Sensitivity

Phospho-S6 Ribosomal Protein (Ser240/244) Antibody detects endogenous levels of ribosomal protein S6 only when phosphorylated at serines 240 and 244. This antibody does not detect S6 ribosomal protein phosphorylated at other sites.

Phospho-S6 Ribosomal Protein (Ser240/244) Antibody检测仅在serine 240和244位点磷酸化的内源性核糖体蛋白S6。该抗体不能检测其它位点磷酸化的S6核糖体蛋白。

Source / Purification

Polyclonal antibodies are produced by immunizing animals with a synthetic phosphopeptide corresponding to residues surrounding Ser240 and Ser244 of human S6 ribosomal protein. Antibodies are purified by protein A and peptide affinity chromatography.


Western Blotting

Western Blotting

Western blot analysis of extracts from 293 cells, untreated or treated with 20% FBS for the indicated time, using Phospho-S6 Ribosomal Protein (Ser235/236) Antibody #2211 (upper) and Phospho-S6 Ribosomal Protein (Ser240/244) Antibody #2215 (lower).

使用Phospho-S6 Ribosomal Protein (Ser235/236) Antibody #2211 (上图)和Phospho-S6 Ribosomal Protein (Ser240/244) Antibody #2215 (下图),进行Western blot以分析293细胞中磷酸化S6核糖体蛋白(Ser235/236)和磷酸化S6核糖体蛋白(Ser240/244)的水平,细胞分为对照组和20% FBS处理组(如图示时间指示)。


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.

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

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