The pentatricopeptide repeat protein MEF26 participates in RNA editing in mitochondrial cox3 and nad4 transcripts

被引:9
作者
Arenas-M., Anita [1 ]
Zehrmann, Anja [2 ]
Moreno, Sebastian [1 ]
Takenaka, Mizuki [2 ]
Jordana, Xavier [1 ]
机构
[1] Pontificia Univ Catolica Chile, Fac Ciencias Biol, Dept Mol Genet & Microbiol, Santiago, Chile
[2] Univ Ulm, D-89069 Ulm, Germany
关键词
PPR protein; RNA editing factor; Plant mitochondria; Pentatricopeptide repeat protein; cox3; nad4; CIS-ACTING ELEMENTS; PPR PROTEIN; ARABIDOPSIS-THALIANA; DYW PROTEIN; MULTIPLE SITES; COMPLEX-I; RECOGNITION; SEQUENCES; GENE; IDENTIFICATION;
D O I
10.1016/j.mito.2014.08.006
中图分类号
Q2 [细胞生物学];
学科分类号
071009 ; 090102 ;
摘要
In angiosperms most members of the large nuclear-encoded family of pentatricopeptide repeat (PPR) proteins are predicted to play relevant roles in the maturation of organellar RNAs. Here we report the novel Mitochondrial Editing Factor 26, a DYW-PPR protein involved in RNA editing at two sites. While at one site, cox3-311, editing is abolished in the absence of MEF26, the other site, nad4-166, is still partially edited. These sites share similar cis-elements and application of the recently proposed amino acid code for RNA recognition by PPR proteins ranks them at first and second positions of the most probable targets. (C) 2014 Elsevier B.V. and Mitochondria Research Society. All rights reserved.
引用
收藏
页码:126 / 134
页数:9
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