2024
DOI: 10.1101/2024.03.06.583770
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Erg251 has complex and pleiotropic effects on azole susceptibility, filamentation, and stress response phenotypes

Xin Zhou,
Audrey Hilk,
Norma V. Solis
et al.

Abstract: Ergosterol is essential for fungal cell membrane integrity and growth, and numerous antifungal drugs target ergosterol. Inactivation or modification of ergosterol biosynthetic genes can lead to changes in antifungal drug susceptibility, filamentation and stress response. Here, we found that the ergosterol biosynthesis gene ERG251 is a hotspot for point mutations during adaptation to antifungal drug stress within two distinct genetic backgrounds of Candida albicans. Heterozygous point mutations led to single al… Show more

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“…Erg251 has been of interest recently as the target of inhibitor CZ66 [ 33 ], which alters the cell’s response to the ergosterol inhibitor fluconazole [ 33 ]. It has also been connected to drug tolerance, drug resistance, and virulence in a manuscript by Zhou et al [ 34 ]. We were intrigued by ERG251 because it is under Efg1 control [ 30 , 31 ]: among 17 clinical isolates, RNA levels for ERG251 are significantly downregulated in each efg1 Δ/Δ mutant compared to its respective wild type.…”
Section: Introductionmentioning
confidence: 99%
“…Erg251 has been of interest recently as the target of inhibitor CZ66 [ 33 ], which alters the cell’s response to the ergosterol inhibitor fluconazole [ 33 ]. It has also been connected to drug tolerance, drug resistance, and virulence in a manuscript by Zhou et al [ 34 ]. We were intrigued by ERG251 because it is under Efg1 control [ 30 , 31 ]: among 17 clinical isolates, RNA levels for ERG251 are significantly downregulated in each efg1 Δ/Δ mutant compared to its respective wild type.…”
Section: Introductionmentioning
confidence: 99%