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Bacterial Artificial Chromosomes: A Functional Genomics Tool for the Study of Positive-strand RNA Viruses
Published on: December 29, 2015
Complete Genome Sequence of the Siphoviral Bacteriophage YMC/09/04/R1988 MRSA BP: A lytic phage from a
Jongsoo Jeon1, Roshan D'Souza, Sung Kuk Hong
1Department of Laboratory Medicine and Research Institute of Antimicrobial Resistance, Yonsei University College of Medicine, Seoul, Korea.
Abstract:
Methicillin-resistant Staphylococcus aureus (MRSA) is an increasing cause of serious infection, both in the community and hospital settings. Despite sophisticated strategies and efforts, the antibiotic options for treating MRSA infection have been narrowed due to the limited number of newly developed antimicrobials. Herein, we analyze the completely sequenced genome of a novel virulent phage YMC/09/04/R1988 MRSA BP as a potential alternative anti-MRSA agent, which lysed clinical isolates from a patient admitted to the hospital due to hip disarticulation. The phage contains a linear double-stranded DNA genome of 44,459 bp in length, with 33.37% GC content, 62 predicted open reading frames (ORFs), and annotated functions of only 23 ORFs that are associated with structural assembly, host lysis, DNA replication, and modification. It showed a broad host range (17 of 30 strains) against MRSA strains in clinical isolates. This article is protected by copyright. All rights reserved.
Insights
A novel bacteriophage, YMC/09/04/R1988 MRSA BP, shows promise as a new weapon against Methicillin-resistant Staphylococcus aureus (MRSA) infections. Its genome sequencing and broad host range suggest potential as an alternative antimicrobial agent.
Area of Science:
- Microbiology
- Genomics
- Bacteriophage Therapy
Background:
- Methicillin-resistant Staphylococcus aureus (MRSA) presents a growing global health challenge due to limited effective antibiotic treatments.
- The increasing prevalence of antibiotic-resistant bacteria necessitates the exploration of alternative therapeutic strategies.
Purpose of the Study:
- To analyze the complete genome sequence of a novel virulent bacteriophage, YMC/09/04/R1988 MRSA BP.
- To evaluate the potential of this bacteriophage as an alternative agent for combating MRSA infections.
Main Methods:
- Whole-genome sequencing of the isolated bacteriophage YMC/09/04/R1988 MRSA BP.
- Bioinformatic analysis to predict open reading frames (ORFs) and their functions.
- Host range determination against clinical MRSA isolates.
Main Results:
- The bacteriophage YMC/09/04/R1988 MRSA BP possesses a linear double-stranded DNA genome of 44,459 bp.
- The genome contains 62 predicted ORFs, with 23 annotated functions related to essential phage processes.
- The phage demonstrated a broad host range, effectively lysing 17 out of 30 tested MRSA clinical isolates.
Conclusions:
- The genomic characterization of YMC/09/04/R1988 MRSA BP provides a foundation for its development as a therapeutic agent.
- This novel bacteriophage represents a promising candidate for alternative anti-MRSA strategies, addressing the critical need for new treatments against resistant bacterial infections.
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