Salivary and pellicle proteome: A datamining analysis.
Hardy Schweigel1, Michael Wicht2, Falk Schwendicke3
1Department of Clinical Research, DMG Dental-Material Gesellschaft, Hamburg, Germany.
Scientific Reports
|December 15, 2016
Summary
This study compared salivary and dental pellicle proteomes, finding significant differences in protein charge, size, phosphorylation, and glycosylation. These distinctions suggest specialized functions for oral proteomes, highlighting key proteins for potential diagnostics.
Area of Science:
- Oral Biology
- Proteomics
- Biochemistry
Background:
- The oral cavity harbors distinct proteomes in saliva and on the dental pellicle.
- Understanding these compartmentalized proteomes is crucial for oral health research.
Purpose of the Study:
- To comprehensively compare the salivary and dental pellicle proteomes.
- To identify physico-chemical, structural, functional, and interactional differences between these two oral compartments.
Main Methods:
- Systematic review and datamining of 1,515 salivary and 60 dental pellicle proteins.
- Analysis of protein properties including charge, size, phosphorylation, and glycosylation.
- Investigation of protein-protein-ligand interaction networks.
Main Results:
- Salivary and pellicle proteins showed no significant differences in aliphatic index, hydrophobicity, instability, or isoelectric point.
- Pellicle proteins were significantly smaller (10-20 kDa) and more charged at extreme pH.
- Pellicle proteins exhibited higher levels of phosphorylation and glycosylation compared to salivary proteins.
- Differences in ion binding, enzymatic activities, and interaction networks were observed.
Conclusions:
- Distinct physico-chemical and functional properties differentiate salivary and dental pellicle proteomes.
- These differences indicate specialized roles within oral compartmentalization.
- Key identified proteins may serve as potential diagnostic or therapeutic targets for oral conditions.
