SUMO-targeted Ubiquitin Ligases as crucial mediators of protein homeostasis in Candida glabrata.

Candida glabrata is an opportunistic human pathogen, capable of causing severe systemic infections that are often resistant to standard antifungal treatments. To understand the importance of protein SUMOylation in the physiology and pathogenesis of C. glabrata, we earlier identified the components o...

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Main Authors: Dipika Gupta, Renu Shukla, Krishnaveni Mishra
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2024-12-01
Series:PLoS Pathogens
Online Access:https://doi.org/10.1371/journal.ppat.1012742
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author Dipika Gupta
Renu Shukla
Krishnaveni Mishra
author_facet Dipika Gupta
Renu Shukla
Krishnaveni Mishra
author_sort Dipika Gupta
collection DOAJ
description Candida glabrata is an opportunistic human pathogen, capable of causing severe systemic infections that are often resistant to standard antifungal treatments. To understand the importance of protein SUMOylation in the physiology and pathogenesis of C. glabrata, we earlier identified the components of SUMOylation pathway and demonstrated that the deSUMOylase CgUlp2 is essential for pathogenesis. In this work we show that the CgUlp2 is essential to maintain protein homeostasis via the SUMO-targeted ubiquitin ligase pathway. The dual loss of deSUMOylase and specific ubiquitin ligase, CgSlx8, results in heightened protein degradation, rendering the cells vulnerable to various stressors. This degradation affects crucial processes such as purine biosynthesis and compromises mitochondrial function in the mutants. Importantly, the absence of these ubiquitin ligases impedes the proliferation of C. glabrata in macrophages. These findings underscore the significance of SUMOylation and SUMO-mediated protein homeostasis as pivotal regulators of C. glabrata physiology and capacity to survive in host cells. Understanding these mechanisms could pave the way for the development of effective antifungal treatments.
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spelling doaj-art-ecf46775690846048744cbb7eebd36d62025-08-20T02:45:00ZengPublic Library of Science (PLoS)PLoS Pathogens1553-73661553-73742024-12-012012e101274210.1371/journal.ppat.1012742SUMO-targeted Ubiquitin Ligases as crucial mediators of protein homeostasis in Candida glabrata.Dipika GuptaRenu ShuklaKrishnaveni MishraCandida glabrata is an opportunistic human pathogen, capable of causing severe systemic infections that are often resistant to standard antifungal treatments. To understand the importance of protein SUMOylation in the physiology and pathogenesis of C. glabrata, we earlier identified the components of SUMOylation pathway and demonstrated that the deSUMOylase CgUlp2 is essential for pathogenesis. In this work we show that the CgUlp2 is essential to maintain protein homeostasis via the SUMO-targeted ubiquitin ligase pathway. The dual loss of deSUMOylase and specific ubiquitin ligase, CgSlx8, results in heightened protein degradation, rendering the cells vulnerable to various stressors. This degradation affects crucial processes such as purine biosynthesis and compromises mitochondrial function in the mutants. Importantly, the absence of these ubiquitin ligases impedes the proliferation of C. glabrata in macrophages. These findings underscore the significance of SUMOylation and SUMO-mediated protein homeostasis as pivotal regulators of C. glabrata physiology and capacity to survive in host cells. Understanding these mechanisms could pave the way for the development of effective antifungal treatments.https://doi.org/10.1371/journal.ppat.1012742
spellingShingle Dipika Gupta
Renu Shukla
Krishnaveni Mishra
SUMO-targeted Ubiquitin Ligases as crucial mediators of protein homeostasis in Candida glabrata.
PLoS Pathogens
title SUMO-targeted Ubiquitin Ligases as crucial mediators of protein homeostasis in Candida glabrata.
title_full SUMO-targeted Ubiquitin Ligases as crucial mediators of protein homeostasis in Candida glabrata.
title_fullStr SUMO-targeted Ubiquitin Ligases as crucial mediators of protein homeostasis in Candida glabrata.
title_full_unstemmed SUMO-targeted Ubiquitin Ligases as crucial mediators of protein homeostasis in Candida glabrata.
title_short SUMO-targeted Ubiquitin Ligases as crucial mediators of protein homeostasis in Candida glabrata.
title_sort sumo targeted ubiquitin ligases as crucial mediators of protein homeostasis in candida glabrata
url https://doi.org/10.1371/journal.ppat.1012742
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AT renushukla sumotargetedubiquitinligasesascrucialmediatorsofproteinhomeostasisincandidaglabrata
AT krishnavenimishra sumotargetedubiquitinligasesascrucialmediatorsofproteinhomeostasisincandidaglabrata