Triple Coding in Human SRD5A1 mRNA
Author Information
Author(s): Yordanova Martina M., Slattery Conor, Baranova-Gurvich Mirriam, Engels Manon, Ting Oscar, Świrski Michał, Tierney Jack A. S., Tjeldnes Håkon, Mudge Jonathan, Loughran Gary, Andreev Dmitry E., Baranov Pavel V.
Hypothesis
The study investigates the simultaneous translation of mRNA transcripts from the SRD5A1 locus in all three reading frames.
Conclusion
The study highlights the significance of identifying and characterizing productive RNA translation, regardless of the biological roles of the resulting proteins.
Supporting Evidence
- The study reports that mRNA from the SRD5A1 locus can be translated in all three reading frames.
- Only one of the three resulting proteins has the active site necessary for its function.
- The most efficient translation produces proteins that are not catalytically active.
- The long triple decoding region appears to be specific to primates.
- The occurrence of nearby AUGs in all three reading frames is ancestral to placental mammals.
- The relative expression of the different proteins varies across cellular environments.
- Triple decoding is resistant to mutations, which may affect how we interpret genetic variants.
Takeaway
This study found that a specific gene can produce three different proteins at the same time, which is unusual and may help us understand how genes work better.
Methodology
The study analyzed publicly available ribosome profiling data and conducted gene expression assays in various cellular environments.
Digital Object Identifier (DOI)
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