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Related Experiment Videos

Moving through the membrane with filamentous phages

M Russel1

  • 1Laboratory of Genetics, Rockefeller University, New York, NY 10021-6399, USA.

Trends in Microbiology
|June 1, 1995
PubMed
Summary

Filamentous phages are unique parasites that assemble and release without harming their host. Their assembly process involves protein transfer and secretion, sharing similarities with bacterial cell-surface structure assembly.

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Area of Science:

  • Microbiology
  • Molecular Biology
  • Virology

Background:

  • Filamentous phages are non-lytic viruses with a unique replication cycle.
  • Their assembly involves intricate protein-DNA interactions and host membrane utilization.
  • Understanding phage assembly provides insights into fundamental biological processes.

Purpose of the Study:

  • To elucidate the molecular mechanisms of filamentous phage assembly.
  • To compare phage assembly with related bacterial cellular processes.
  • To identify conserved principles in viral replication and host-cell interactions.

Main Methods:

  • Analysis of virion protein localization and transfer during assembly.
  • Investigating the role of the host membrane in phage morphogenesis.
  • Comparative genomics and bioinformatics to identify shared pathways.

Main Results:

  • Virion proteins are sequentially transferred from the host membrane to the phage genome.
  • Phage assembly and secretion occur concurrently without host cell lysis.
  • Significant parallels were observed between phage assembly and bacterial secretion systems.

Conclusions:

  • Filamentous phage assembly is a highly regulated process involving host-pathogen interactions.
  • The study highlights conserved mechanisms in protein secretion and assembly across different biological systems.
  • Filamentous phages serve as a model for studying non-lytic viral replication and host-cell machinery.

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