☆ 4.5 Article

Identification of a pentatricopeptide repeat RNA editing factor in Physcomitrella patens chloroplasts

FEBS LETTERS (2014)

Journal

FEBS LETTERS

Volume 588, Issue 21, Pages 4060-4064

Publisher

ELSEVIER SCIENCE BV

DOI: 10.1016/j.febslet.2014.09.031

Keywords

RNA editing; Pentatricopeptide repeat protein; DYW domain; Chloroplast; Physcomitrella patens

Categories

Biochemistry & Molecular Biology Biophysics Cell Biology

Funding

JSPS KAKENHI [23657003, 25291059, 25660292]
Grants-in-Aid for Scientific Research [25660292, 23657003, 13J03052] Funding Source: KAKEN

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Abstract

The moss Physcomitrella patens has two RNA editing sites in the chloroplasts. Here we identified a novel DYW-subclass pentatricopeptide repeat (PPR) protein, PpPPR_45, as a chloroplast RNA editing factor in P. patens. Knockdown of the PpPPR_45 gene reduced the extent of RNA editing at the chloroplast rps14-C2 site, whereas over-expression of PpPPR_45 increased the levels of RNA editing at both the rps14-C2 site and its neighboring C site. This indicates that the expression level of PpPPR_45 affects the extent of RNA editing at the two neighboring sites. (C) 2014 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.

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