New Insights into Signal Peptides and Their Fragments
Author Information
Author(s): Ono Kenji, Lin Hao
Primary Institution: Nagoya City University, Japan
Hypothesis
Signal peptides and their fragments may have physiological roles beyond their classical function in protein targeting.
Conclusion
This review highlights that signal peptides and their fragments can be bioactive and play significant roles in intercellular communication and disease mechanisms.
Supporting Evidence
- Signal peptides direct proteins to the endoplasmic reticulum during translation.
- Cleaved signal peptide fragments can be detected in extracellular fluids and exhibit bioactivity.
- Some signal peptide fragments have potential as biomarkers for various diseases.
- Extracellular vesicles play a role in the transport of signal peptide fragments.
Takeaway
Signal peptides are like address labels for proteins, helping them get to the right place in the cell, but new research shows they can also do other important jobs outside the cell.
Methodology
This is a review article summarizing recent findings on the roles of signal peptides and their fragments.
Limitations
The evidence regarding the functions of signal peptides is currently scattered and not systematically reviewed.
Digital Object Identifier (DOI)
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