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Related Concept Videos

DNA Bacteriophages01:26

DNA Bacteriophages

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Bacteriophages, or phages, are viruses that specifically infect bacteria, utilizing their genetic material to hijack host cellular machinery for replication. DNA bacteriophages employ single-stranded DNA (ssDNA) or double-stranded DNA (dsDNA) genomes. These phages exhibit diverse replication strategies and host interactions, influencing their ecological roles and applications in biotechnology and medicine.ssDNA BacteriophagesssDNA phages, with their small genomes, utilize unique strategies to...
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Lysogenic Cycle of Bacteriophages00:43

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In contrast to the lytic cycle, phages infecting bacteria via the lysogenic cycle do not immediately kill their host cell. Instead, they combine their genome with the host genome, allowing the bacteria to replicate the phage DNA along with the bacterial genome. The incorporated copy of the phage genome is called the prophage. Some prophages can re-activate and enter the lytic cycle. This often occurs in response to a perturbation, such as DNA damage, but can also transpire in the absence of...
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Bacteriophages, also known as phages, are specialized viruses that infect bacteria. A key characteristic of phages is their distinctive “head-tail” morphology. A phage begins the infection process (i.e., lytic cycle) by attaching to the outside of a bacterial cell. Attachment is accomplished via proteins in the phage tail that bind to specific receptor proteins on the outer surface of the bacterium. The tail injects the phage’s DNA genome into the bacterial cytoplasm. In the...
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Isolation and Genome Analysis of Single Virions using 'Single Virus Genomics'
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Isolation and Genome Analysis of Single Virions using 'Single Virus Genomics'

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Charting a phage genome atlas.

Shelby E Andersen1, Breck A Duerkop1

  • 1Department of Immunology and Microbiology, University of Colorado - Anschutz Medical Campus, School of Medicine, Aurora, CO 80045, USA.

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|August 14, 2025
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Summary
This summary is machine-generated.

Researchers developed PhageMaP, a new method for creating bacteriophage mutant libraries. This tool enables systematic study of phage gene function, overcoming previous limitations in genetic analysis.

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Area of Science:

  • Microbiology
  • Genetics
  • Molecular Biology

Background:

  • Understanding bacteriophage (phage) genotype-phenotype relationships is crucial for applications in medicine and biotechnology.
  • Current methods for studying phage gene function are limited by genetic tractability and high-throughput screening capabilities.

Purpose of the Study:

  • To establish a novel platform for generating bacteriophage mutant libraries.
  • To enable systematic interrogation of phage gene function and its impact on phenotypes.

Main Methods:

  • Development of PhageMaP, a system for creating phage mutant libraries.
  • Application of PhageMaP for high-throughput screening of phage gene function.

Main Results:

  • PhageMaP successfully generated diverse mutant libraries.
  • Systematic analysis of phage genes using PhageMaP revealed key functional insights.

Conclusions:

  • PhageMaP significantly advances the ability to study bacteriophage genetics.
  • This platform opens new avenues for understanding phage biology and engineering phage for therapeutic applications.