Real-Time Detection of Protein Retrotranslocation in Cells
Author Information
Author(s): Wahlman Judit, DeMartino George N., Skach William R., Bulleid Neil J., Brodsky Jeffrey L., Johnson Arthur E.
Primary Institution: Texas A&M University
Hypothesis
The study investigates the roles of different components in the retrotranslocation of ERAD substrates.
Conclusion
Derlin-1 is essential for the retrotranslocation of the pro-α factor substrate from the ER to the cytosol.
Supporting Evidence
- Derlin-1 was shown to be involved in the retrotranslocation process.
- Retrotranslocation was monitored continuously in real time.
- Antibodies against derlin-1 blocked retrotranslocation significantly.
Takeaway
This study shows how certain proteins help move misfolded proteins out of the cell's factory area so they can be broken down.
Methodology
The study used a mammalian in vitro system to monitor the retrotranslocation of a fluorescence-labeled ERAD substrate in real time.
Limitations
The study only examined one ERAD substrate, and results may not apply to other substrates.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website