Journal
FEBS LETTERS
Volume 584, Issue 20, Pages 4287-4291Publisher
WILEY
DOI: 10.1016/j.febslet.2010.09.041
Keywords
RNA editing; Plant organelles; PPR proteins; Horizontal gene transfer
Funding
- Deutsche Forschungsgemeinschaft (DFG) [Kn411-7]
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A particular type of pentatricopeptide repeat (PPR) proteins with variable length of the 35 aa PPR motifs and conserved carboxyterminal extensions, named the PLS proteins, was so far exclusively identified in land plants. Several PLS proteins with such domain extensions (E, E+, DYW) were shown to be involved in plant organellar RNA editing but their evolutionary origin had remained enigmatic. We here report the first case of DYW-type PLS proteins outside of the plant kingdom in the protist Naegleria gruberi and hypothesize on horizontal gene transfer in very early land plant evolution. (C) 2010 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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