Revision 3

#13253Store at -20C

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.
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UniProt ID:

#P15941

Entrez-Gene Id:

4582

Product Information

Product Usage Information

CST recommends transfection with 100 nM SignalSilence® MUC1 siRNA I 48 to 72 hours prior to cell lysis. For transfection procedure, follow protocol provided by the transfection reagent manufacturer. Please feel free to contact CST with any questions on use.

Each vial contains the equivalent of 100 transfections, which corresponds to a final siRNA concentration of 100 nM per transfection in a 24-well plate with a total volume of 300 μl per well.

Storage

SignalSilence® siRNA is supplied in RNAse-free water. Aliquot and store at -20ºC.

Specificity / Sensitivity

Species Reactivity:

Human

Product Description

SignalSilence® MUC1 siRNA I from Cell Signaling Technology (CST) allows the researcher to specifically inhibit MUC1 expression using RNA interference, a method whereby gene expression can be selectively silenced through the delivery of double stranded RNA molecules into the cell. All SignalSilence® siRNA products from CST are rigorously tested in-house and have been shown to reduce target protein expression by western analysis.

Background

Mucins represent a family of glycoproteins characterized by repeat domains and dense O-glycosylation (1). MUC1 (or mucin 1) is aberrantly overexpressed in most human carcinomas. Increased expression of MUC1 in carcinomas reduces cell-cell and cell-ECM interactions. MUC1 is cleaved proteolytically, and the large ectodomain can remain associated with the small 25 kDa carboxy-terminal domain that contains a transmembrane segment and a 72-residue cytoplasmic tail (1). MUC1 interacts with ErbB family receptors and potentiates ERK1/2 activation (2). MUC1 also interacts with β-catenin, which is regulated by GSK-3β, PKCγ, and Src through phosphorylation at Ser44, Thr41, and Tyr46 of the MUC1 cytoplasmic tail (3-5). Overexpression of MUC1 potentiates transformation (6) and attenuates stress-induced apoptosis through the Akt or p53 pathways (7,8).

  1. Baldus, S.E. et al. (2004) Crit Rev Clin Lab Sci 41, 189-231.
  2. Schroeder, J.A. et al. (2001) J Biol Chem 276, 13057-64.
  3. Li, Y. et al. (1998) Mol Cell Biol 18, 7216-24.
  4. Li, Y. et al. (2001) J Biol Chem 276, 6061-4.
  5. Ren, J. et al. (2002) J Biol Chem 277, 17616-22.
  6. Schroeder, J.A. et al. (2004) Oncogene 23, 5739-47.
  7. Raina, D. et al. (2004) J Biol Chem 279, 20607-12.
  8. Wei, X. et al. (2005) Cancer Cell 7, 167-78.

Species Reactivity

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

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.
CST is a trademark of Cell Signaling Technology, Inc.
SignalSilence is a registered trademark of Cell Signaling Technology, Inc.
All other trademarks are the property of their respective owners. Visit cellsignal.com/trademarks for more information.

限制使用

除非 CST 的合法授书代表以书面形式书行明确同意,否书以下条款适用于 CST、其关书方或分书商提供的书品。 任何书充本条款或与本条款不同的客书条款和条件,除非书 CST 的合法授书代表以书面形式书独接受, 否书均被拒书,并且无效。

专品专有“专供研究使用”的专专或专似的专专声明, 且未专得美国食品和专品管理局或其他外国或国内专管机专专专任何用途的批准、准专或专可。客专不得将任何专品用于任何专断或治专目的, 或以任何不符合专专声明的方式使用专品。CST 专售或专可的专品提供专作专最专用专的客专,且专用于研专用途。将专品用于专断、专防或治专目的, 或专专售(专独或作专专成)或其他商专目的而专专专品,均需要 CST 的专独专可。客专:(a) 不得专独或与其他材料专合向任何第三方出售、专可、 出借、捐专或以其他方式专专或提供任何专品,或使用专品制造任何商专专品,(b) 不得复制、修改、逆向工程、反专专、 反专专专品或以其他方式专专专专专品的基专专专或技专,或使用专品开专任何与 CST 的专品或服专专争的专品或服专, (c) 不得更改或专除专品上的任何商专、商品名称、徽专、专利或版专声明或专专,(d) 只能根据 CST 的专品专售条款和任何适用文档使用专品, (e) 专遵守客专与专品一起使用的任何第三方专品或服专的任何专可、服专条款或专似专专

Revision 3
#13253

SignalSilence® MUC1 siRNA I

SignalSilence® MUC1 siRNA I: Image 1 Expand Image
使用 MUC1 (VU4H5) Mouse mAb #4538(上图)或 β-Actin (D6A8) Rabbit mAb #8457(下图),对转染 100 nM SignalSilence® Control siRNA (Unconjugated) #6568 (-) 或 SignalSilence® MUC1 siRNA I (+) 的 ZR-75-1 细胞的提取物进行蛋白质印迹分析。MUC1 (VU4H5) Mouse mAb 确认 MUC1 表达沉默,而 β-Actin (D6A8) Rabbit mAb 则用作上样对照。