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Updated: Jul 15, 2025

Phage Phenomics: Physiological Approaches to Characterize Novel Viral Proteins
Published on: June 11, 2015
The heterogenous and diverse population of prophages in Mycobacterium genomes
Lawrence Abad1, Christian H Gauthier1, Isabella Florian1
1Department of Biological Sciences, University of Pittsburgh , Pittsburgh, Pennsylvania, USA.
Importance:
Mycobacterium species include several human pathogens and mycobacteriophages show potential for therapeutic use to control Mycobacterium infections. However, phage infection profiles vary greatly among Mycobacterium abscessus clinical isolates and phage therapies must be personalized for individual patients. Mycobacterium phage susceptibility is likely determined primarily by accessory parts of bacterial genomes, and we have identified the prophage and phage-related genomic regions across sequenced Mycobacterium strains. The prophages are numerous and diverse, especially in M. abscessus genomes, and provide a potentially rich reservoir of new viruses that can be propagated lytically and used to expand the repertoire of therapeutically useful phages.
Insights
Mycobacterium abscessus infections can be treated with mycobacteriophages, but therapies require personalization. Researchers identified diverse prophages in M. abscessus genomes, offering a new source of therapeutic phages.
Area of Science:
- Microbiology
- Genomics
- Bacteriophage Therapy
Background:
- Mycobacterium species are significant human pathogens.
- Mycobacteriophages show promise for treating Mycobacterium infections.
- Phage susceptibility varies among clinical isolates, necessitating personalized phage therapies.
Purpose of the Study:
- To identify prophage and phage-related genomic regions in sequenced Mycobacterium strains.
- To explore the diversity of prophages, particularly in Mycobacterium abscessus.
- To assess the potential of these prophages as a source for novel therapeutic agents.
Main Methods:
- Bioinformatic analysis of sequenced Mycobacterium genomes.
- Identification and characterization of prophage and phage-related sequences.
- Assessment of prophage diversity and abundance.
Main Results:
- Numerous and diverse prophages were identified across Mycobacterium strains.
- Mycobacterium abscessus genomes harbor a particularly rich reservoir of prophages.
- These prophages represent potential candidates for lytic propagation and therapeutic use.
Conclusions:
- The genomic analysis reveals a substantial pool of novel phages within Mycobacterium genomes.
- Targeting these prophages can expand the arsenal of mycobacteriophages for clinical applications.
- Personalized phage therapy strategies can be enhanced by exploring these genomic resources.
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