نتایج جستجو برای: small interfering rna

تعداد نتایج: 1014115  

2012
Xin Jin Tingting Sun Chuanke Zhao Yongxiang Zheng Yufan Zhang Weijing Cai Qiuchen He Kaz Taira Lihe Zhang Demin Zhou

Strategies to regulate gene function frequently use small interfering RNAs (siRNAs) that can be made from their shRNA precursors via Dicer. However, when the duplex components of these siRNA effectors are expressed from their respective coding genes, the RNA interference (RNAi) activity is much reduced. Here, we explored the mechanisms of action of shRNA and siRNA and found the expressed siRNA,...

Journal: :Structure 2009
Robert Landick

In plants, unorthodox multisubunit RNA polymerases (RNAPs) play key roles in small interfering RNA (siRNA) genesis and function. In a recent issue of Molecular Cell, Ream et al. (2009) established a 12-subunit composition for Arabidopsis RNAPIV and RNAPV. Subunit and sequence divergence between RNAPIV-V and RNAPI-III suggests significant functional deviation of these intriguing RNAPs.

2007
Timothy A. Vickers Walt F. Lima Josh G. Nichols Stanley T. Crooke

Administration of small interfering RNAs (siRNAs) leads to degradation of specific mRNAs utilizing the cellular RNA interference (RNAi) machinery. It has been demonstrated that co-administration of siRNAs may lead to attenuation of activity of one of the siRNAs. Utilizing antisense and siRNA-mediated RNA-induced silencing complex (RISC) gene reduction we show that siRNA competition is correlate...

Journal: :Cell 2007
Stefan Ludwig Ameres Javier Martinez Renée Schroeder

The RNA-Induced Silencing Complex (RISC) is a ribonucleoprotein particle composed of a single-stranded short interfering RNA (siRNA) and an endonucleolytically active Argonaute protein, capable of cleaving mRNAs complementary to the siRNA. The mechanism by which RISC cleaves a target RNA is well understood, however it remains enigmatic how RISC finds its target RNA. Here, we show, both in vitro...

Journal: :Proceedings of the National Academy of Sciences 2003

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