Nm-seq maps 2'-O-methylation sites in human mRNA with base precision.

Dai, Qing; Moshitch-Moshkovitz, Sharon; Han, Dali; Kol, Nitzan; Amariglio, Ninette; Rechavi, Gideon; Dominissini, Dan; He, Chuan · Nat Methods · 2017

basic_science · Level V

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Abstract

The ribose of RNA nucleotides can be 2'-O-methylated (Nm). Despite advances in high-throughput detection, the inert chemical nature of Nm still limits sensitivity and precludes mapping in mRNA. We leveraged the differential reactivity of 2'-O-methylated and 2'-hydroxylated nucleosides to periodate oxidation to develop Nm-seq, a sensitive method for transcriptome-wide mapping of Nm with base precision. Nm-seq uncovered thousands of Nm sites in human mRNA with features suggesting functional roles.

Medical subject headings