Product Pathways - Apoptosis / Autophagy
SignalSilence® Caspase-3 siRNA II #6520
PhosphoSitePlus® protein, site, and accession data: Casp3
| Applications | Reactivity |
|---|---|
| Transfection | H |
Reactivity Key:
H=Human
Species cross-reactivity is determined by western blot. Species enclosed in parentheses are predicted to react based on 100% sequence homology.
Western Blotting
Western blot analysis of extracts from HeLa cells, transfected with 100 nM SignalSilence® Control siRNA (Fluorescein Conjugate) #6201 (-) or SignalSilence® Caspase-3 siRNA II (+), using Caspase-3 (8G10) Rabbit mAb #9665 and α-Tubulin (11H10) Rabbit mAb #2125. Caspase-3 (8G10) Rabbit mAb confirms silencing of caspase-3 expression, while the α-Tubulin (11H10) Rabbit mAb is used to control for loading and specificity of caspase-3 siRNA.
Description
SignalSilence® Caspase-3 siRNA II allows the researcher to specifically inhibit caspase-3 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 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.
Directions for Use
CST recommends transfection with 100 nM Caspase-3 siRNA 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
Caspase-3 (CPP-32, Apoptain, Yama, SCA-1) is a critical executioner of apoptosis, as it is either partially or totally responsible for the proteolytic cleavage of many key proteins such as the nuclear enzyme poly(ADP-ribose) polymerase (PARP) (1). Activation of caspase-3 requires proteolytic processing of its inactive zymogen into activated p17 and p12 fragments. Cleavage of caspase-3 requires aspartic acid at the P1 position (2).
- Fernandes-Alnemri, T. et al. (1994) J. Biol. Chem. 269, 30761-30764.
- Nicholson, D. W. et al. (1995) Nature 376, 37-43.
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
- 6201 SignalSilence® Control siRNA (Fluorescein Conjugate)
- 6568 SignalSilence® Control siRNA (Unconjugated)
- 6466 SignalSilence® Caspase-3 siRNA I
- 9665 Caspase-3 (8G10) Rabbit mAb
Limited Use Label License, RNA interference: This product is licensed under European Patent 1144623 and foreign equivalents from Ribopharma AG, Kulmbach, Germany and is provided only for use in non-commercial research specifically excluding use (a) in drug discovery or drug development, including target identification or target validation, by or on behalf of a commercial entity, (b) for contract research or commercial screening services, (c) for the production or manufacture of siRNA-related products for sale, or (d) for the generation of commercial databases for sale to Third Parties. Information about licenses for these and other commercial uses is available from Ribopharma AG, Fritz-Hornschuch-Str. 9, D-95326 Kulmbach, Germany.
This product is intended for research purposes only. The product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.
