Contiguous RNA editing sites in the mitochondrial nad1 transcript of Arabidopsis thaliana are recognized by different proteins

被引：15

作者：

Arenas-M, Anita ^{[1
]}

Takenaka, Mizuki ^{[2
]}

Moreno, Sebastian ^{[1
]}

Gomez, Isabel ^{[1
]}

Jordana, Xavier ^{[1
]}

机构：

[1] Pontificia Univ Catolica Chile, Fac Ciencias Biol, Dept Genet Mol & Microbiol, Santiago, Chile

[2] Univ Ulm, D-89069 Ulm, Germany

来源：

FEBS LETTERS | 2013年 / 587卷 / 07期

关键词：

RNA editing factor; Plant mitochondria; Pentatricopeptide repeat protein; PPR protein; nad1; MEF25; PENTATRICOPEPTIDE REPEAT PROTEIN; COMPLEX-II; DYW DOMAIN; GENE; REVEALS; GENOME;

D O I：

10.1016/j.febslet.2013.02.009

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Pentatricopeptide repeat (PPR) proteins have been identified as site-specific factors for RNA editing in plant organelles. These proteins recognize cis-elements near the editing site. It is unclear how contiguous sites are addressed, and whether one or two factors are required. We here show the PPR MEF25 to be essential for RNA editing at the nad1-308 site in Arabidopsis mitochondria. Another editing site just one nucleotide upstream, nad1-307, is edited normally in mef25 mutant lines. This finding shows that two independent factors recognizing similar cis-elements are involved at these contiguous sites without competing with each other in vivo. (C) 2013 Federation of European Biochemical Societies. Published by Elsevier B. V. All rights reserved.

引用

页码：887 / 891

页数：5

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