Identification of factors required for m6A mRNA methylation in Arabidopsis reveals a role for the conserved E3 ubiquitin ligase HAKAI
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Open Access
- 15 May 2017
- journal article
- research article
- Published by Wiley in New Phytologist
- Vol. 215 (1), 157-172
- https://doi.org/10.1111/nph.14586
Abstract
N6-adenosine methylation (m(6)A) of mRNA is an essential process in most eukaryotes, but its role and the status of factors accompanying this modification are still poorly understood. Using combined methods of genetics, proteomics and RNA biochemistry, we identified a core set of mRNA m(6)A writer proteins in Arabidopsis thaliana. The components required for m(6)A in Arabidopsis included MTA, MTB, FIP37, VIRILIZER and the E3 ubiquitin ligase HAKAI. Downregulation of these proteins led to reduced relative m(6)A levels and shared pleiotropic phenotypes, which included aberrant vascular formation in the root, indicating that correct m(6)A methylation plays a role in developmental decisions during pattern formation. The conservation of these proteins amongst eukaryotes and the demonstration of a role in writing m(6)A for the E3 ubiquitin ligase HAKAI is likely to be of considerable relevance beyond the plant sciences.Keywords
Funding Information
- Grantová Agentura České Republiky (P501/12/0934)
- European Social Fund (CZ.1.07/2.3.00/20.0189)
- Ministerstvo Školství, Mládeže a Tělovýchovy (NPUII‐LQ1601)
- National Science Foundation
- Biotechnology and Biological Sciences Research Council (BB/M008606/1, BB/K013637/1)
- Helsingin Yliopisto (799992091)
- H2020 European Research Council (323052)
- Grantová Agentura České Republiky (P501/12/0934)
- European Social Fund (CZ.1.07/2.3.00/20.0189)
- Ministerstvo Školství, Mládeže a Tělovýchovy (NPUII-LQ1601)
- National Science Foundation
- Biotechnology and Biological Sciences Research Council (BB/M008606/1, BB/K013637/1)
- Helsingin Yliopisto (799992091)
- H2020 European Research Council (323052)
- Finnish Funding Agency for Technology and Innovation (Tekes)
- Academy of Finland Centre of Excellence program (63053034)
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