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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

A mammalian RNA editing enzyme.

Editing of RNA by site-selective adenosine deamination alters codons in brain-expressed pre-messenger RNAs for glutamate receptor ( GluR) subunits including a codon for a channel determinant (Q/R site) in GluR-B, which controls the Ca2+ permeability of alpha-amino-3-hydroxy-5-methylisoxazole-4-propionic acid (AMPA) receptors. Editing of GluR pre-mRNAs requires a double-stranded RNA (dsRNA) structure formed by exonic and intronic sequences and is catalysed by an unknown dsRNA adenosine deaminase. Here we report the cloning of complementary DNA for RED1, a dsRNA adenosine deaminase expressed in brain and peripheral tissues that efficiently edits the Q/R site in GluR-B pre-mRNA in vitro. This site is poorly edited by DRADA, which is distantly sequence-related to RED1. Both deaminases edit the R/G site in GluR-B pre-mRNA, indicating that members of an emerging gene family catalyse adenosine deamination in nuclear transcripts with distinct but overlapping substrate specificities.[1]


  1. A mammalian RNA editing enzyme. Melcher, T., Maas, S., Herb, A., Sprengel, R., Seeburg, P.H., Higuchi, M. Nature (1996) [Pubmed]
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