Related Experiment Video

Updated: Jul 3, 2026

T4 Bacteriophage and E. coli Interaction in the Murine Intestine: A Prototypical Model for Studying Host-Bacteriophage Dynamics In Vivo
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T4 Bacteriophage and E. coli Interaction in the Murine Intestine: A Prototypical Model for Studying Host-Bacteriophage Dynamics In Vivo

Published on: January 26, 2024

Studies on phage development. II. The maturation of T4 phage in the presence of puromycin

M M Piechowski1, M Susman

  • 1Department of Genetics, University of Wisconsin, Madison, Wisconsin, USA.

Virology
|March 1, 1966
PubMed

Insights

Bacteriophage T4 maturation continues even when protein synthesis is blocked by puromycin. This indicates that maturation relies on a pre-existing pool of phage proteins, with tail fiber protein being a key limiting factor.

Area of Science:

  • Molecular Biology
  • Virology
  • Biochemistry

Background:

  • Bacteriophage T4 maturation involves the assembly of new phage particles.
  • Protein synthesis is generally considered essential for viral replication and assembly.

Purpose of the Study:

  • To investigate the role of newly synthesized proteins in Bacteriophage T4 maturation.
  • To determine if T4 maturation can proceed independently of ongoing protein synthesis.

Main Methods:

  • Inhibition of phage protein synthesis using puromycin.
  • Monitoring T4 maturation in the presence of puromycin.
  • Quantifying phage precursor protein pools, including tail fiber protein and serum blocking proteins (SBP).

Main Results:

  • T4 maturation continues for a period after protein synthesis is inhibited by puromycin.
  • Maturation arrests when a limiting protein precursor, such as tail fiber protein, is depleted.
  • A pool of maturable phage proteins exists before maturation begins, with bulk precursor protein accumulating earlier and in larger quantities than SBP.

Conclusions:

  • Bacteriophage T4 maturation can proceed using a pre-existing pool of proteins, independent of immediate protein synthesis.
  • The size of this pre-formed protein pool dictates the extent of maturation possible after protein synthesis inhibition.
  • Tail fiber protein is a critical component of the limiting precursor pool for T4 maturation.

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