期刊
FEBS LETTERS
卷 581, 期 22, 页码 4132-4138出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.febslet.2007.07.075
关键词
RNA editing; PPR protein; DYW domain; plant evolution
RNA editing in plant organelles is an enigmatic process leading to conversion of cytidines into uridines. Editing specificity is determined by proteins; both those known so far are pentatricopeptide repeat (PPR) proteins. The enzyme catalysing RNA editing in plants is still totally unknown. We propose that the DYW domain found in many higher plant PPR proteins is the missing catalytic domain. This hypothesis is based on two compelling observations: (i) the DYW domain contains invariant residues that match the active site of cytidine deaminases; (ii) the phylogenetic distribution of the DYW domain is strictly correlated with RNA editing. (c) 2007 Federation of European Biochemical Societies. Published by Elsevier B.V. All rights reserved.
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