RNA Interference

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RNA Interference (RNAi) is a system in living cells that helps control the level of activity of genes. In RNAi, a long double stranded RNA is cleaved into shorter strands. One strand known as the guide strand is complimentary to the mRNA gene product of a gene of interest. This guide strand is incorporated into an RNA-induced silencing complex (RISC) and subsequently binds the mRNA of the gene of interest. After binding, the RNA/RISC complex subsequently silences the mRNA of interest via cleavage of the mRNA strand.

Drag the structure with the mouse to rotate
guide-strand-containing Argonaute protein silencing complex 3dlh, resolution 3.00Å (initial scene)
Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



Schematic of RNAi Interference in Mammalian Cells
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viral silencing suppressor bound to a siRNA (1rpu), resolution 2.50Å (initial scene)
Resources: FirstGlance, OCA, PDBsum, RCSB
Coordinates: save as pdb, mmCIF, xml



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David Canner, Wayne Decatur, Eric Martz