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Updated: May 15, 2026

Characterizing Multidrug Efflux Systems in Acinetobacter baumannii Using an Efflux-Deficient Bacterial Strain and a Single-Copy Gene Expression System
05:06

Characterizing Multidrug Efflux Systems in Acinetobacter baumannii Using an Efflux-Deficient Bacterial Strain and a Single-Copy Gene Expression System

Published on: January 5, 2024

Characterization and genome sequencing of phage Abp1, a new phiKMV-like virus infecting multidrug-resistant

Guangtao Huang1, Shuai Le, Yizhi Peng

  • 1Department of Microbiology, Third Military Medical University, Chongqing 400038, China.

Current Microbiology
|January 19, 2013
PubMed

Insights

Researchers discovered a new bacteriophage, Abp1, effective against multidrug-resistant Acinetobacter baumannii. This virulent phage, classified under Podoviridae, shows promise as an alternative antibiotic therapy.

Area of Science:

  • Microbiology
  • Virology
  • Genomics

Background:

  • Multidrug-resistant Acinetobacter baumannii poses a significant threat in healthcare settings.
  • There is an urgent need for novel therapeutic strategies, including bacteriophage therapy, to combat resistant bacterial infections.

Purpose of the Study:

  • To isolate and characterize a bacteriophage with activity against multidrug-resistant Acinetobacter baumannii.
  • To determine the genomic and morphological properties of the isolated bacteriophage.

Main Methods:

  • Bacteriophage isolation and purification.
  • Transmission electron microscopy for morphology.
  • SDS-PAGE for protein analysis.
  • Single-step growth curve experiments.
  • Whole-genome sequencing and bioinformatic analysis.

Main Results:

  • Isolation of virulent Acinetobacter baumannii bacteriophage Abp1, belonging to the Podoviridae family.
  • Abp1 possesses a latent period of 10 minutes and a burst size of 350, with a narrow host range.
  • The complete genome is a 42,185 bp linear double-stranded DNA molecule with 54 putative genes, closely related to phiAB1.

Conclusions:

  • Abp1 is a novel bacteriophage with potential as a therapeutic agent against multidrug-resistant Acinetobacter baumannii.
  • Its genomic and morphological characteristics place it within the phiKMV-like virus subgroup of the T7 group.
  • Further research into Abp1's efficacy and safety is warranted for clinical applications.

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