SignalSilence siRNA
SignalSilence® Cofilin siRNA I #6267
| Item # | Description | List Price | Web Price | QTY | Buy |
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| Applications | Reactivity | Sensitivity | MW (kDa) | Source |
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| H |
Applications Key:
Reactivity Key:
H = Human
Species cross-reactivity is determined by Western blot.
Description
SignalSilence® Cofilin siRNA I from Cell Signaling Technology (CST) allows the researcher to specifically inhibit cofilin 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.
Quality Control
Oligonucleotide synthesis is monitored base by base through trityl analysis to ensure appropriate coupling efficiency. The oligo is subsequently purified by affinity-solid phase extraction. The annealed RNA duplex is further analyzed by mass spectrometry to verify the exact composition of the duplex. Each lot is compared to the previous lot by mass spectrometry to ensure maximum lot-to-lot consistency.
Western Blotting
Western blot analysis of extracts from HeLa cells, transfected with 100 nM SignalSilence® Control siRNA (Unconjugated) #6568 (-), SignalSilence® Cofilin siRNA I (+) or SignalSilence® Cofilin siRNA II #6268 (+), using Cofilin (D59) Antibody #3318 (upper) or α-Tubulin (11H10) Rabbit mAb #2125 (lower). The Cofilin (D59) Antibody confirms silencing of cofilin expression, while the α-Tubulin (11H10) Rabbit mAb is used as a loading control.
Directions for Use
CST recommends transfection with 100 nM Cofilin 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.
Background
Cofilin and ADF (actin-depolymerization factor) are members of a family of essential conserved small actin-binding proteins that play pivotal roles in cytokinesis, endocytosis, embryonic development, stress response and tissue regeneration (1). In response to stimuli, cofilin promotes the regeneration of actin filaments by severing preexisting filaments (2). The severing activity of cofilin is inhibited by LIMK or TESK phosphorylation at Ser3 of cofilin (3-5). Phosphorylation at Ser3 also regulates cofilin translocation from the nucleus to the cytoplasm (6).
- Carlier, M. et al. (1999) J. Biol. Chem.274, 33827 - 33830.
- Condeelis, J. et al. (2001) Trends Cell Biol.11, 288 - 293.
- Arber, S. et al. (1998) Nature393, 805 - 809.
- Yang, N. et al. (1998) Nature393, 809 - 812.
- Toshima, J. et al. (2001) J. Biol. Chem.276, 31449 - 31458.
- Nebl, G. et al. (1996) J. Biol. Chem.271, 26276 - 26280.
Application References
Have you published research involving the use of our products? If so we'd love to hear about it. Please let us know!
Companion Products
- 6568 SignalSilence® Control siRNA (Unconjugated)
- 6201 SignalSilence® Control siRNA (Fluorescein Conjugate)
- 3312 Cofilin Antibody
- 6268 SignalSilence® Cofilin siRNA II
This product is for in vitro research use only and is not intended for use in humans or animals. This product is not intended for use as therapeutic or in diagnostic procedures.
