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Related Experiment Video

Updated: Nov 21, 2025

Characterization of a Pathogenic Escherichia coli Strain Derived from Oreochromis spp. Farms Using Whole-Genome Sequencing

Characterization of a Pathogenic Escherichia coli Strain Derived from Oreochromis spp. Farms Using Whole-Genome Sequencing

Published on: December 23, 2022

Functional Differences between E. coli and ESKAPE Pathogen GroES/GroEL.

Jared Sivinski¹, Andrew J Ambrose¹, Iliya Panfilenko¹

¹Department of Pharmacology and Toxicology, College of Pharmacy, University of Arizona, Tucson, Arizona, USA.

|January 13, 2021

Summary

This summary is machine-generated.

Bacterial GroES/GroEL chaperonins show functional differences between species, impacting antibiotic development. New strains reveal insights into chaperonin function and antibiotic targeting.

Keywords:

ESKAPE GroEL GroES HSP10 HSP60 antibiotic antimicrobial chaperone chaperonin

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Area of Science:

Microbiology
Molecular Biology
Biochemistry

Background:

The GroES/GroEL chaperonin system is essential for bacterial survival.
GroES/GroEL inhibitors are investigated as potential antibiotics.
Functional identity of Escherichia coli GroES/GroEL with other bacterial chaperonins is unknown.

Purpose of the Study:

To characterize GroES/GroEL chaperonins from ESKAPE pathogens.
To assess the functional compatibility of ESKAPE GroES/GroEL in E. coli.
To understand potential differences in chaperonin function for antibiotic development.

Main Methods:

Complementation experiments in GroES/GroEL-deficient E. coli strains.
Exogenous ESKAPE chaperone function assessment.
Phenotypic analysis of E. coli strains with replaced groESL genes.

Main Results:

Only a subset of ESKAPE GroES/GroEL systems complemented E. coli.
Some ESKAPE chaperonins complemented E. coli only in the absence of E. coli GroES/GroEL.
GroES/GroEL from S. aureus did not complement E. coli under any condition.
Viable strains with replaced groESL showed an elongated phenotype.

Conclusions:

Significant functional differences exist between bacterial GroES/GroEL chaperonins.
E. coli GroES/GroEL is not a universal functional model for all bacterial chaperonins.
These findings provide mechanistic insights and new tools for developing chaperonin-targeted antibiotics.