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Biochim Biophys Acta. 2015 Jun;1853(6):1272-83. doi: 10.1016/j.bbamcr.2014.12.010. Epub 2014 Dec 20.

Iron-sulfur proteins responsible for RNA modifications.

Author information

1
Department of Chemistry and Biotechnology, Graduate School of Engineering, University of Tokyo, Bldg. 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan.
2
Department of Chemistry and Biotechnology, Graduate School of Engineering, University of Tokyo, Bldg. 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan. Electronic address: ts@chembio.t.u-tokyo.ac.jp.

Abstract

RNA molecules are decorated with various chemical modifications, which are introduced post-transcriptionally by RNA-modifying enzymes. These modifications are required for proper RNA function. Among more than 100 known species of RNA modifications, several modified bases in tRNAs and rRNAs are introduced by RNA-modifying enzymes containing iron-sulfur (Fe/S) clusters. Most Fe/S-containing RNA-modifying enzymes contain radical SAM domains that catalyze a variety of chemical reactions, including methylation, methylthiolation, carboxymethylation, tricyclic purine formation, and deazaguanine formation. Lack of these modifications can cause pathological consequences. Here, we review recent studies on the biogenesis and function of RNA modifications mediated by Fe/S proteins. This article is part of a Special Issue entitled: Fe/S proteins: Analysis, structure, function, biogenesis and diseases.

KEYWORDS:

Fe/S cluster; RNA modification; Radical SAM enzyme

PMID:
25533083
DOI:
10.1016/j.bbamcr.2014.12.010
[Indexed for MEDLINE]
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