Abstract
Small interfering RNA (siRNA) has become a powerful tool for selectively silencing gene expression in cultured mammalian cells. Because different siRNAs of the same gene have varying silencing capacities, several different siRNAS typically must be screened to obtain a region that will effectively silence the gene of interest. However, RNA interference with synthetic siRNA is inefficient and cost-intensive, especially for large, functional genomic studies. Here, we describe the use of E. coli endoribonuclease III to cleave double-stranded RNA (dsRNA) into esiRNA (endoribonuclease-prepared siRNA) that can target multiple sites within an mRNA. EsiRNA mediates effective RNA interference with no apparent nonspecific effects in cultured mammalian cells. Since the whole gene can be used at once, screening for an active siRNA for an individual gene is eliminated. Because of its simplicity and potency, this approach is useful for large-scale analysis of mammalian gene function.
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© 2004 Humana Press Inc., Totowa, NJ
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Yang, D., Goga, A., Bishop, J.M. (2004). RNA Interference (RNAi) With RNase III-Prepared siRNAs. In: Sioud, M. (eds) Ribozymes and siRNA Protocols. Methods in Molecular Biology™, vol 252. Humana Press. https://doi.org/10.1385/1-59259-746-7:471
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DOI: https://doi.org/10.1385/1-59259-746-7:471
Publisher Name: Humana Press
Print ISBN: 978-1-58829-226-1
Online ISBN: 978-1-59259-746-8
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