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Shredding the signal: targeting peptide degradation in mitochondria and chloroplasts
Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
Stockholm University, Faculty of Science, Department of Biochemistry and Biophysics.
2014 (English)In: Trends in Plant Science, ISSN 1360-1385, E-ISSN 1878-4372, Vol. 19, no 12, 771-778 p.Article, review/survey (Refereed) Published
Abstract [en]

The biogenesis and functionality of mitochondria and chloroplasts depend on the constant turnover of their proteins. The majority of mitochondrial and chloroplastic proteins are imported as precursors via their N-terminal targeting peptides. After import, the targeting peptides are cleaved off and degraded. Recent work has elucidated a pathway involved in the degradation of targeting peptides in mitochondria and chloroplasts, with two proteolytic components: the presequence protease (PreP) and the organellar oligopeptidase (OOP). PreP and OOP are specialized in degrading peptides of different lengths, with the substrate restriction being dictated by the structure of their proteolytic cavities. The importance of the intraorganellar peptide degradation is highlighted by the fact that elimination of both oligopeptidases affects growth and development of Arabidopsis thaliana.

Place, publisher, year, edition, pages
2014. Vol. 19, no 12, 771-778 p.
Keyword [en]
Arabidopsis thaliana, mitochondria, chloroplasts, oligopeptidases, targeting peptides, peptide degradation
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:su:diva-113577DOI: 10.1016/j.tplants.2014.09.004ISI: 000347137200008OAI: oai:DiVA.org:su-113577DiVA: diva2:786027
Note

AuthorCount:3;

Available from: 2015-02-04 Created: 2015-02-04 Last updated: 2017-12-05Bibliographically approved

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Kmiec, BeataTeixeira, Pedro F.Glaser, Elzbieta
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