Preparation of small RNA libraries for high-throughput sequencing.

Abstract:: This protocol details the process of small RNA cloning for sequencing on the Illumina/Solexa sequencing platform, but it can be easily modified for use on other next-generation platforms (e.g., SOLiD, 454). This procedure is designed to clone canonical small RNA molecules with 5'-monophosphate and 3'-hydroxyl termini. Modifications, such as the presence of a 2'-O-methyl group, can reduce efficiency, although not sufficiently to negate the utility of the approach. Other termini modifications, such as a 5' triphosphate or a 3' phosphate, can be altered by enzymatic treatment before cloning.

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