Chloroplast RNA-binding proteins: Repair and regulation of chloroplast transcripts
نویسندگان
چکیده
منابع مشابه
Chloroplast RNA-binding and pentatricopeptide repeat proteins.
Chloroplast gene expression is mainly regulated at the post-transcriptional level by numerous nuclear-encoded RNA-binding protein factors. In the present study, we focus on two RNA-binding proteins: cpRNP (chloroplast ribonucleoprotein) and PPR (pentatricopeptide repeat) protein. These are suggested to be major contributors to chloroplast RNA metabolism. Tobacco cpRNPs are composed of five diff...
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Chloroplast gene expression is primarily controlled during the translation of plastid mRNAs into proteins, and genetic studies have identified cis-acting RNA elements and trans-acting protein factors required for chloroplast translation. Biochemical analysis has identified both general and specific mRNA-binding proteins as components of the regulation of chloroplast translation, and has reveale...
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The expression of angiosperm chloroplast genes is modified by C-to-U RNA editing. The mechanism for recognition of the approximately 30 C targets of editing is not understood. There is no single consensus sequence surrounding editing sites, though sites can be grouped into small 'clusters' of two to five sites exhibiting some sequence similarity. While complementary RNA that guides nucleotides ...
متن کاملRegulation of RNA Editing in Chloroplast
RNA editing is an important process involved in the modification of nucleotides in the transcripts of a large number of functional genes. RNA editing results in the restoration of conserved amino acid residues for protein function in plants. In this review, I only describe and discuss the identified RNA editing and the RNA editing associated regulation in chloroplast, including cytidine-to-urid...
متن کاملChloroplast RNA editing by pentatricopeptide repeat proteins.
Pentatricopeptide repeat (PPR) proteins function in multiple processes in mRNA maturation in plastids and mitochondria (reviewed in Schmitz-Linneweber and Small, 2008). RNA maturation in chloroplasts is complex, and PPR proteins act in cisand trans-splicing, translation, RNA cleavage, RNA stabilization, and RNA editing. This large protein family, with 450 members in Arabidopsis, is characterize...
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ژورنال
عنوان ژورنال: RNA Biology
سال: 2010
ISSN: 1547-6286,1555-8584
DOI: 10.4161/rna.7.2.11090