Tracking Distinct RNA Populations Using Efficient and Reversible Covalent Chemistry.

Tracking Distinct RNA Populations Using Efficient and Reversible Covalent Chemistry.
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使用有效和可逆的共价化学跟踪不同的RNA群体。

DOI:
10.1016/j.molcel.2015.07.023
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发表时间:
2015-09-03
期刊:
影响因子:
16
通讯作者:
Simon MD
Simon MD
中科院分区:
生物学1区
文献类型:
--
作者:
Duffy EE;Rutenberg-Schoenberg M;Stark CD;Kitchen RR;Gerstein MB;Simon MD

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We describe a chemical method to label and purify 4-thiouridine (s4U)-containing RNA. We demonstrate that methanethiosulfonate (MTS) reagents form disulfide bonds with s4U more efficiently than the commonly used HPDP-biotin, leading to higher yields and less biased enrichment. This increase in efficiency allowed us to use s4U-labeling to study global microRNA (miRNA) turnover in proliferating cultured human cells without perturbing global miRNA levels or the miRNA processing machinery. This improved chemistry will enhance methods that depend on tracking different populations of RNA, such as 4-thiouridine-tagging to study tissue-specific transcription and dynamic transcriptome analysis (DTA) to study RNA turnover.