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Colonisation of Pathogens01:25

Colonisation of Pathogens

Pathogen colonization of host tissues is a critical step in the development of infectious diseases. Various pathogenic microorganisms, including bacteria, fungi, viruses, and protozoa, have evolved complex strategies to attach to, invade, and persist within host environments. These mechanisms enable pathogens to establish infections, evade immune responses, and resist antimicrobial treatments.Attachment to Host CellsIn bacteria, colonization typically begins with adherence to host epithelial...
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In Vitro SUMOylation Assay to Study SUMO E3 Ligase Activity
09:45

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Published on: January 29, 2018

Human pathogens and the host cell SUMOylation system.

Peter Wimmer1, Sabrina Schreiner, Thomas Dobner

  • 1Heinrich Pette Institute--Leibniz Institute for Experimental Virology, Hamburg, Germany.

Journal of Virology
|November 11, 2011
PubMed
Summary

Small ubiquitin-related modifier (SUMO)ylation alters protein interactions and cellular pathways. Pathogens, particularly viruses, exploit this host cell system for their benefit, a mechanism still under investigation.

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Localization of SUMO-modified Proteins Using Fluorescent Sumo-trapping Proteins
06:23

Localization of SUMO-modified Proteins Using Fluorescent Sumo-trapping Proteins

Published on: April 27, 2019

Area of Science:

  • Biochemistry
  • Molecular Biology
  • Virology

Background:

  • Posttranslational modification (PTM) by small ubiquitin-related modifiers (SUMOs) affects numerous cellular proteins and pathways.
  • SUMOylation alters protein interactions, localization, stability, and activity.
  • Pathogens exploit the host cell SUMO system due to its functional flexibility.

Purpose of the Study:

  • To provide an overview of SUMO modification in virus infection.
  • To evaluate mechanisms of host cell SUMO system exploitation by pathogenic microbes, especially viruses.

Main Methods:

  • Literature review of current knowledge on SUMOylation and viral exploitation.
  • Analysis of common principles and molecular mechanisms.

Main Results:

  • SUMOylation is a widespread PTM with significant impact on cellular functions.
  • Viruses and other pathogens have evolved strategies to manipulate host SUMOylation.
  • Specific examples of viral protein interactions with the SUMOylation machinery are emerging.

Conclusions:

  • SUMOylation plays a critical role in host-pathogen interactions, particularly viral infections.
  • Understanding these interactions is key to deciphering viral pathogenesis.
  • Further research is needed to fully elucidate the complex interplay between SUMOylation and viral replication.