RNA editing in eukaryotic genome expression

RNA editing in eukaryotic genome expression The present review surveys the available data on the involvement of adenine deamination in RNA molecules in the formation of structurally and functionally diverse RNA and protein subforms in eukaryotic cells. Deamination of adenine by adenosine deaminases that act on RNA (ADARs) leads to the conversion of adenine into inosine (A-I editing) recognized by the splicing and translation systems as guanine. This may modify splicing sites in pre-mRNA and codons in translated regions of mRNA and also affect the RNA secondary structure. Apart from mRNA, editing also involves microRNAs whose regulatory functions in multicellular animals are associated with the inhibition of transcription of target genes or with the degradation of certain RNA transcripts. ADARs can inhibit the production of mature microRNAs or modify microRNAs so that their specificity to target genes is altered. Adenosine deaminases editing adenines in transport RNAs (ADATs) convert adenine into inosine in tRNAs of all eukaryotes; as a result, the diversity of tRNA forms in the cell increases. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Genetics Springer Journals

RNA editing in eukaryotic genome expression

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Publisher
SP MAIK Nauka/Interperiodica
Copyright
Copyright © 2010 by Pleiades Publishing, Ltd.
Subject
Biomedicine; Microbial Genetics and Genomics; Animal Genetics and Genomics; Human Genetics
ISSN
1022-7954
eISSN
1608-3369
D.O.I.
10.1134/S1022795410010011
Publisher site
See Article on Publisher Site

Abstract

The present review surveys the available data on the involvement of adenine deamination in RNA molecules in the formation of structurally and functionally diverse RNA and protein subforms in eukaryotic cells. Deamination of adenine by adenosine deaminases that act on RNA (ADARs) leads to the conversion of adenine into inosine (A-I editing) recognized by the splicing and translation systems as guanine. This may modify splicing sites in pre-mRNA and codons in translated regions of mRNA and also affect the RNA secondary structure. Apart from mRNA, editing also involves microRNAs whose regulatory functions in multicellular animals are associated with the inhibition of transcription of target genes or with the degradation of certain RNA transcripts. ADARs can inhibit the production of mature microRNAs or modify microRNAs so that their specificity to target genes is altered. Adenosine deaminases editing adenines in transport RNAs (ADATs) convert adenine into inosine in tRNAs of all eukaryotes; as a result, the diversity of tRNA forms in the cell increases.

Journal

Russian Journal of GeneticsSpringer Journals

Published: Jan 12, 2010

References

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