Understanding the Interaction Between HuR and CD83 mRNA
Author Information
Author(s): Pieper Dorothea, Schirmer Susann, Prechtel Alexander T., Kehlenbach Ralph H., Hauber Joachim, Chemnitz Jan
Primary Institution: Heinrich Pette Institute - Leibniz Institute for Experimental Virology, Hamburg, Germany
Hypothesis
The study investigates how the HuR protein interacts with the CD83 mRNA and its implications for mRNA transport.
Conclusion
The presence of a functional posttranscriptional regulatory element (PRE) in CD83 mRNA is crucial for its nuclear export via the CRM1 pathway.
Supporting Evidence
- The study demonstrated that both RRM1 and RRM2 of HuR are crucial for binding to CD83 mRNA.
- Deletion of specific PRE subfragments from the CD83 mRNA prevented HuR binding in vitro and in vivo.
- The presence of the PRE directs CD83 mRNA into the CRM1 nuclear export pathway.
Takeaway
This study shows that a special part of the CD83 mRNA helps it move from the nucleus to the cytoplasm, which is important for making proteins that help our immune system.
Methodology
The interaction was analyzed using in vitro binding assays and immuno-PCR experiments in COS7 cells.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website