Title |
High-efficiency RNA cloning enables accurate quantification of miRNA expression by deep sequencing
|
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Published in |
Genome Biology, December 2013
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DOI | 10.1186/gb-2013-14-10-r109 |
Pubmed ID | |
Authors |
Zhaojie Zhang, Jerome E Lee, Kent Riemondy, Emily M Anderson, Rui Yi |
Abstract |
Small RNA cloning and sequencing is uniquely positioned as a genome-wide approach to quantify miRNAs with single-nucleotide resolution. However, significant biases introduced by RNA ligation in current protocols lead to inaccurate miRNA quantification by 1000-fold. Here we report an RNA cloning method that achieves over 95% efficiency for both 5′ and 3′ ligations. It achieves accurate quantification of synthetic miRNAs with less than two-fold deviation from the anticipated value and over a dynamic range of four orders of magnitude. Taken together, this high-efficiency RNA cloning method permits accurate genome-wide miRNA profiling from total RNAs. |
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