Single molecule-sensitive probes for imaging RNA in live cells.

Santangelo, Philip J; Lifland, Aaron W; Curt, Paul; Sasaki, Yukio; Bassell, Gary J; Lindquist, Michael E; Crowe, James E · Nat Methods · 2009

basic_science · Level V

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Abstract

To visualize native or non-engineered RNA in live cells with single-molecule sensitivity, we developed multiply labeled tetravalent RNA imaging probes (MTRIPs). When delivered with streptolysin O into living human epithelial cancer cells and primary chicken fibroblasts, MTRIPs allowed the accurate imaging of native mRNAs and a non-engineered viral RNA, of RNA co-localization with known RNA-binding proteins, and of RNA dynamics and interactions with stress granules.

Medical subject headings