Journal
NATURE COMMUNICATIONS
Volume 2, Issue -, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/ncomms1324
Keywords
-
Categories
Funding
- National Institute of General Medical Sciences [R01GM044073]
- American Foundation for Suicide Prevention
- University of Utah Study Design and Biostatistics Center
- Public Health Services from the National Center for Research Resources [UL1-RR025764, C06-RR11234]
Ask authors/readers for more resources
ADAR (adenosine deaminase that acts on RNA) editing enzymes target coding and noncoding double-stranded RNA (dsRNA) and are essential for neuronal function. Early studies showed that ADARs preferentially target adenosines with certain 5' and 3' neighbours. Here we use current Sanger sequencing protocols to perform a more accurate and quantitative analysis. We quantified editing sites in an similar to 800-bp dsRNA after reaction with human ADAR1 or ADAR2, or their catalytic domains alone. These large data sets revealed that neighbour preferences are mostly dictated by the catalytic domain, but ADAR2's dsRNA-binding motifs contribute to 3' neighbour preferences. For all proteins, the 5' nearest neighbour was most influential, but adjacent bases also affected editing site choice. We developed algorithms to predict editing sites in dsRNA of any sequence, and provide a web-based application. The predictive power of the algorithm on fully base-paired dsRNA, compared with biological substrates containing mismatches, bulges and loops, elucidates structural contributions to editing specificity.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available