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Sorting Nexins in Protein Homeostasis.
Sara E Hanley1, Katrina F Cooper1
1Department of Molecular Biology, Graduate School of Biomedical Sciences, Rowan University, Stratford, NJ 08084, USA.
Cells
|December 30, 2020
Summary
Sorting nexins and ubiquitin are crucial for maintaining protein homeostasis. These proteins link cellular pathways essential for protein quality control and preventing disease.
Area of Science:
- Cellular Biology
- Molecular Biology
- Biochemistry
Background:
- Protein homeostasis is vital for cellular function, maintained by the ubiquitin-proteasome system, autophagy-lysosomal pathway, and endo-lysosomal pathway.
- Ubiquitin acts as a common link between these three major protein degradation pathways.
- Sorting nexins (SNXs) are diverse membrane-associated proteins involved in protein trafficking and represent another common link in protein homeostasis.
Purpose of the Study:
- To review the interconnected roles of sorting nexins and ubiquitin in maintaining cellular protein quality control.
- To highlight the critical functions of sorting nexins in cellular processes.
- To emphasize the link between genetic defects in sorting nexins and human diseases.
Main Methods:
- Literature review focusing on sorting nexins, ubiquitin, and protein homeostasis pathways.
- Analysis of the roles of sorting nexins in protein trafficking and quality control.
- Examination of the connection between sorting nexin dysfunction and human diseases.
Main Results:
- Sorting nexins and ubiquitin are integral components linking major cellular protein degradation pathways.
- Sorting nexins play multifaceted roles in protein trafficking and cellular quality control.
- Genetic defects in sorting nexins are associated with significant human pathologies.
Conclusions:
- Sorting nexins are essential regulators of protein homeostasis, bridging key cellular pathways.
- The intricate interplay between sorting nexins and ubiquitin is fundamental for cellular health.
- Dysregulation of sorting nexin function has profound implications for human health and disease.
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