期刊
NATURE REVIEWS MOLECULAR CELL BIOLOGY
卷 7, 期 12, 页码 919-931出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/nrm2061
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- NCI NIH HHS [P01 CA072765-050002, P01 CA072765] Funding Source: Medline
- NHLBI NIH HHS [R01 HL070045, R01 HL070045-04] Funding Source: Medline
- NIGMS NIH HHS [R01 GM040536, R01 GM040536-15] Funding Source: Medline
The most prevalent type of RNA editing is mediated by ADAR (adenosine deaminase acting on RNA) enzymes, which convert adenosines to inosines (a process known as A -> I RNA editing) in double-stranded (ds) RNA substrates. A -> I RNA editing was long thought to affect only selected transcripts by altering the proteins they encode. However, genome-wide screening has revealed numerous editing sites within inverted Alu repeats in introns and untranslated regions. Also, recent evidence indicates that A -> I RNA editing crosstalks with RNA-interference pathways, which, like A -> I RNA editing, involve dsRNAs. A -> I RNA editing therefore seems to have additional functions, including the regulation of retrotransposons and gene silencing, which adds a new urgency to the challenges of fully understanding ADAR functions.
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