Novel Exon of Mammalian ADAR2 Extends Open Reading Frame RNA Editing Enzyme Expression
2009
New Variant of ADAR2 Extends Protein Function
publication
Evidence: moderate
Author Information
Author(s): Stefan Maas, Willemijn M. Gommans
Primary Institution: Lehigh University
Hypothesis
The study investigates the existence and function of a novel ADAR2 splice variant that may regulate RNA editing.
Conclusion
The newly identified ADAR2 splice variant is conserved across vertebrates and may play a significant role in RNA editing.
Supporting Evidence
- The new ADAR2 splice variant extends the protein's open reading frame by 49 amino acids.
- Expression analysis shows that the novel ADAR2 variant is tissue-specific, with highest levels in the cerebellum.
- The sequence conservation of the ADAR2 R-domain suggests a conserved function across species.
Takeaway
Scientists found a new version of a protein called ADAR2 that helps edit RNA, which is important for making proteins in our bodies.
Methodology
The study used 5′-RACE experiments and quantitative real-time PCR to analyze the expression of the ADAR2 splice variant.
Limitations
The detection of the ADAR2R isoform may be complicated due to its similarity with other ADAR2 variants.
Digital Object Identifier (DOI)
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