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ABSTRACT
Our ability to map and quantify RNA modifications at a genome-wide scale have revolutionized our understanding of the pervasiveness and dynamic regulation of diverse RNA modifications. Recent efforts in the field have demonstrated the presence of modified residues in almost any type of cellular RNA. Next-generation sequencing (NGS) technologies are the primary choice for transcriptome-wide RNA modification mapping. Here we provide an overview of approaches for RNA modification detection based on their RT-signature, specific chemicals, antibody-dependent (Ab) enrichment, or combinations thereof. We further discuss sources of artifacts in genome-wide modification maps, and experimental and computational considerations to overcome them. The future in this field is tightly linked to the development of new specific chemical reagents, highly specific Ab against RNA modifications and use of single-molecule RNA sequencing techniques.
Disclosure of potential conflicts of interest
No potential conflicts of interest were disclosed.
Acknowledgments
We thank S. Schwartz and Y. Motorin lab members for comments on the manuscript. This work was supported by joint ANR-DFG grant HTRNAMod (ANR-13-ISV8-0001/HE 3397/8-1) to YM.
Funding
SS was supported by research grants from The Abramson Family Center for Young Scientists, the David and Fela Shapell Family Foundation INCPM Fund for Preclinical Studies, the Estate of David Turner, Berlin Family Foundation New Scientist Fund, the Abisch Frenkel Foundation and by the Israel Science Foundation (grant No. 543165).
