Genome-wide analysis of Arabidopsis pentatricopeptide repeat proteins reveals their essential role in organelle biogenesis - Archive ouverte HAL Access content directly
Journal Articles The Plant cell Year : 2004

Genome-wide analysis of Arabidopsis pentatricopeptide repeat proteins reveals their essential role in organelle biogenesis

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Claire Lurin
Clémence Bruyère
  • Function : Author
C. Debast
  • Function : Author
José Gualberto
  • Function : Author
A. Lecharny
  • Function : Author
M. Le Ret
  • Function : Author

Abstract

The complete sequence of the Arabidopsis thaliana genome revealed thousands of previously unsuspected genes, many of which cannot be ascribed even putative functions. One of the largest and most enigmatic gene families discovered in this way is characterized by tandem arrays of pentatricopeptide repeats (PPRs). We describe a detailed bioinformatic analysis of 441 members of the Arabidopsis PPR family plus genomic and genetic data on the expression (microarray data), localization (green fluorescent protein and red fluorescent protein fusions), and general function (insertion mutants and RNA binding assays) of many family members. The basic picture that arises from these studies is that PPR proteins play constitutive, often essential roles in mitochondria and chloroplasts, probably via binding to organellar transcripts. These results confirm, but massively extend, the very sparse observations previously obtained from detailed characterization of individual mutants in other organisms.
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hal-02679636 , version 1 (22-07-2022)

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Attribution - NonCommercial - CC BY 4.0

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Claire Lurin, Charles Andres, Sebastien Aubourg, M. Bellaoui, Frédérique Bitton, et al.. Genome-wide analysis of Arabidopsis pentatricopeptide repeat proteins reveals their essential role in organelle biogenesis. The Plant cell, 2004, 16 (7), pp.1-15. ⟨hal-02679636⟩
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