Direct Selection and Phage Display of Bacterial Secretome Proteins
Author Information
Author(s): Dragana Jankovic, Michael A Collett, Mark W Lubbers, Jasna Rakonjac
Primary Institution: Massey University
Hypothesis
Can a phage display system be developed for the direct selection, identification, expression, and purification of bacterial secretome proteins?
Conclusion
The study successfully developed a phage display system that efficiently identifies and displays secretome proteins from the probiotic bacterium Lactobacillus rhamnosus HN001.
Supporting Evidence
- The phage display system identified 89 surface and secreted proteins from L. rhamnosus HN001.
- The method achieved a 210-fold enrichment of secretome insert-containing recombinant phagemids.
- Over half of the identified ORFs were present multiple times as distinct recombinant phagemids.
Takeaway
The researchers created a new method to find and study proteins that bacteria release into their environment, which can help us understand how these bacteria interact with our bodies.
Methodology
The study utilized a phage display system to select and display secretome proteins from Lactobacillus rhamnosus HN001, involving the construction of a new phagemid vector and helper phage.
Limitations
The study's findings are based on a limited library size and may not represent the entire secretome of L. rhamnosus HN001.
Digital Object Identifier (DOI)
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