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Published on: November 12, 2012
Functional genomics of intracellular bacteria
Marie de Barsy1, Gilbert Greub
1IMUL, Lausanne, Switzerland.
Briefings in Functional Genomics
|April 9, 2013
Summary
Functional genomics aids in understanding hypothetical proteins from whole-genome sequencing. This field faces challenges with intracellular pathogenic bacteria, requiring specialized approaches for virulence factor identification.
Area of Science:
- Microbiology
- Genomics
- Bioinformatics
Background:
- The genomic era has yielded numerous hypothetical proteins requiring functional characterization.
- Functional genomics aims to assign functions to gene products, particularly crucial for understanding pathogens.
- Intracellular pathogenic bacteria present unique research challenges, including difficult cultivation and host-pathogen interactions.
Purpose of the Study:
- To explore the development and application of functional genomics for intracellular pathogenic bacteria.
- To address the specific challenges associated with studying these microorganisms.
- To identify novel virulence factors and effectors in intracellular pathogens.
Main Methods:
- Utilizing bioinformatic analyses and comparative genomics with model organisms like Escherichia coli and Bacillus subtilis.
- Employing heterologous expression systems to study bacterial genes.
- Focusing on effector identification, such as those involved in Type IV Secretion Systems (T4SS).
Main Results:
- Functional genomics approaches are essential for deciphering the roles of unknown proteins in pathogens.
- Bioinformatics and heterologous expression are key strategies for overcoming experimental hurdles.
- The identification of bacterial effectors is a significant outcome, aiding in understanding host cell manipulation.
Conclusions:
- Functional genomics is vital for advancing our understanding of intracellular pathogenic bacteria.
- Specialized methodologies are necessary to overcome the inherent difficulties in studying these organisms.
- Identifying virulence factors and effectors is critical for developing new therapeutic strategies.
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