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Isolation and Biochemical Analysis of Plant Small RNAs

 Last Update: 2020-11-18
 Source: Internet
 Author: User

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Small RNAs, defined as noncoding 20–30-nt-long RNAs, are instrumental regulators of cellular processes in most eukaryotes. In this chapter we describe three methods for extracting small RNA from cells: a general method, one plant specific and a third particular to conifers. Further, protocols are given for the analysis and quantification of small RNAs using polyacrylamide gel-based approaches. A native streptavidin gel-shift assay, useful for measuring the relative amounts of multiple small RNAs simultaneously, is presented. To further characterize small RNAs biochemically, a sodium periodate assay probing for 2′, 3′ hydroxyl groups on the 3′ terminus of small RNAs is outlined.

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