MEF10 is required for RNA editing at nad2-842 in mitochondria of Arabidopsis thaliana and interacts with MORF8

MEF10 is required for RNA editing at nad2-842 in mitochondria of Arabidopsis thaliana and... A forwards genetic screen of a chemically mutated plant population identified mitochondrial RNA editing factor 10 (MEF10) in Arabidopsis thaliana. MEF10 is a trans-factor required specifically for the C to U editing of site nad2-842. The MEF10 protein is characterized by a stretch of pentatricopeptide repeats (PPR) and a C-terminal extension domain ending with the amino acids DYW. Editing is lost in mutant plants but is recovered by transgenic introduction of an intact MEF10 gene. The MEF10 protein interacts with multiple organellar RNA editing factor 8 (MORF8) but not with other mitochondrial MORF proteins in yeast two hybrid assays. These results support the model that specific combinations of MORF and MEF proteins are involved in RNA editing in plant mitochondria. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Plant Molecular Biology Springer Journals

MEF10 is required for RNA editing at nad2-842 in mitochondria of Arabidopsis thaliana and interacts with MORF8

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Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Life Sciences; Plant Sciences; Biochemistry, general; Plant Pathology
ISSN
0167-4412
eISSN
1573-5028
D.O.I.
10.1007/s11103-012-0003-2
Publisher site
See Article on Publisher Site

Abstract

A forwards genetic screen of a chemically mutated plant population identified mitochondrial RNA editing factor 10 (MEF10) in Arabidopsis thaliana. MEF10 is a trans-factor required specifically for the C to U editing of site nad2-842. The MEF10 protein is characterized by a stretch of pentatricopeptide repeats (PPR) and a C-terminal extension domain ending with the amino acids DYW. Editing is lost in mutant plants but is recovered by transgenic introduction of an intact MEF10 gene. The MEF10 protein interacts with multiple organellar RNA editing factor 8 (MORF8) but not with other mitochondrial MORF proteins in yeast two hybrid assays. These results support the model that specific combinations of MORF and MEF proteins are involved in RNA editing in plant mitochondria.

Journal

Plant Molecular BiologySpringer Journals

Published: Jan 4, 2013

References

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