Journal
FEBS LETTERS
Volume 579, Issue 26, Pages 5850-5857Publisher
WILEY
DOI: 10.1016/j.febslet.2005.08.071
Keywords
asymmetry; RISC assembly; siRNA unwinding
Funding
- Wellcome Trust [076624] Funding Source: Medline
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RNAi is a conserved gene-specific regulatory mechanism, which silences target gene expression transcriptionally and post-transcriptionally. The RNAi machinery converts the sequence specific information of a long double stranded RNAs (dsRNAs) into small 21-22 nt long dsRNAs (siRNAs, miRNAs) which assemble into an effector complex, the RNA induced silencing complex (RISC). RISC assembly is asymmetric; one strand of an siRNA or a miRNA preferentially incorporates into the RNA-protein complex. Here, I review the rules of the asymmetric RISC formation and discuss their possible regulatory function in several steps in RNAi. (c) 2005 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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