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A Comparative Approach to Characterize the Landscape of Host-Pathogen Protein-Protein Interactions
13:56

A Comparative Approach to Characterize the Landscape of Host-Pathogen Protein-Protein Interactions

Published on: July 18, 2013

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Virus-host protein-protein interactions of mycobacteriophage Giles

Jitender Mehla1, Rebekah M Dedrick2, J Harry Caufield3

  • 1Center for the Study of Biological Complexity, Virginia Commonwealth University, Richmond, VA, 23284, USA. jitender@vcu.edu.

Scientific Reports
|November 30, 2017
PubMed

Insights

This study explored mycobacteriophage Giles protein interactions using yeast two-hybrid screening. Researchers identified 25 protein-protein interactions, offering new insights into phage biology and potential therapeutic targets.

Area of Science:

  • Virology
  • Molecular Biology
  • Biochemistry

Background:

  • Mycobacteriophages are viruses infecting mycobacteria, with numerous sequenced genomes encoding many proteins of unknown function.
  • Understanding mycobacteriophage protein functions is crucial for advancing phage therapy and mycobacterial research.

Purpose of the Study:

  • To investigate mycobacteriophage Giles-host protein-protein interactions (PPIs).
  • To identify specific Giles proteins involved in these interactions.

Main Methods:

  • Yeast two-hybrid (Y2H) screening was employed to detect PPIs.
  • A subset of 10 Giles proteins was selected for interaction analysis.

Main Results:

  • Twenty-five reproducible PPIs were identified for the selected Giles proteins.
  • Interactions involved known proteins like virion assembly protein (gp17), integrase (gp29), endolysin (gp31), and repressor (gp47), as well as six proteins of unknown function.
  • Overexpression of these proteins showed toxicity in M. smegmatis.

Conclusions:

  • The study successfully identified novel protein-protein interactions for mycobacteriophage Giles.
  • These findings contribute to understanding the functional roles of mycobacteriophage proteins.
  • Further research is needed to correlate observed protein interactions with in vivo toxicity and cellular changes.

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