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The Phox (PX) domain proteins and membrane traffic
1Membrane Biology Laboratory, Institute of Molecular and Cell Biology, Proteos, 61 Biopolis Drive, Singapore 138673, Singapore.
Biochimica Et Biophysica Acta
|June 20, 2006
Summary
Phosphoinositides (PIs) are crucial signaling molecules regulating cellular processes. This review focuses on Phox (PX) domain proteins, including sorting nexins (SNXs), and their roles in membrane trafficking.
Area of Science:
- Cell Biology
- Molecular Biology
- Biochemistry
Background:
- Phosphoinositides (PIs) are key regulators of cellular functions.
- PIs act as docking sites for proteins with specific binding domains.
- The Phox (PX) domain is a PI-binding module found in many proteins.
Purpose of the Study:
- To review recent developments in the study of PX domain-containing proteins.
- To highlight the role of PX domain proteins in cellular processes.
- To discuss the function of sorting nexins (SNXs) in membrane trafficking.
Main Methods:
- Literature review of recent research on PX domain proteins.
- Analysis of the known functions and interactions of PX domain proteins.
- Focus on the role of SNXs in endocytic pathway regulation.
Main Results:
- PX domain proteins, including 47 mammalian proteins, are involved in diverse cellular functions.
- Approximately 30 PX domain proteins are classified as sorting nexins (SNXs).
- SNXs play significant roles in regulating membrane trafficking within the endocytic pathway.
Conclusions:
- PX domain proteins are critical for cellular signaling and protein localization.
- Further research into PX domain proteins, particularly SNXs, is essential for understanding membrane trafficking.
- These proteins offer potential targets for therapeutic interventions in related diseases.
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