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Updated: Jun 27, 2025

Small-Scale Plasma Membrane Preparation for the Analysis of Candida albicans Cdr1-mGFPHis
Published on: June 13, 2021
Fungal Plasma Membrane H+-ATPase: Structure, Mechanism, and Drug Discovery
Chao-Ran Zhao1,2, Zi-Long You3, Lin Bai3
1Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China.
Abstract:
The fungal plasma membrane H+-ATPase (Pma1) pumps protons out of the cell to maintain the transmembrane electrochemical gradient and membrane potential. As an essential P-type ATPase uniquely found in fungi and plants, Pma1 is an attractive antifungal drug target. Two recent Cryo-EM studies on Pma1 have revealed its hexameric architecture, autoinhibitory and activation mechanisms, and proton transport mechanism. These structures provide new perspectives for the development of antifungal drugs targeting Pma1. In this article, we review the history of Pma1 structure determination, the latest structural insights into Pma1, and drug discoveries targeting Pma1.
Insights
The fungal plasma membrane H+-ATPase (Pma1) is a key antifungal target. Recent Cryo-EM studies reveal Pma1
Area of Science:
- Biochemistry
- Structural Biology
- Mycology
Background:
- The fungal plasma membrane H+-ATPase (Pma1) is crucial for maintaining cellular electrochemical gradients.
- Pma1, an essential P-type ATPase in fungi, represents a promising target for antifungal drug development.
- Understanding Pma1's structure and function is vital for combating fungal infections.
Purpose of the Study:
- To review the historical determination of Pma1 structures.
- To present the latest structural insights into Pma1's architecture and mechanisms.
- To discuss current drug discovery efforts targeting Pma1.
Main Methods:
- Review of existing literature on Pma1 structure determination.
- Analysis of recent Cryo-Electron Microscopy (Cryo-EM) studies on Pma1.
- Summary of antifungal drug discovery strategies targeting Pma1.
Main Results:
- Recent Cryo-EM studies have elucidated the hexameric structure of Pma1.
- These studies revealed Pma1's autoinhibitory and activation mechanisms.
- Insights into the proton transport mechanism of Pma1 were provided.
Conclusions:
- The latest structural data on Pma1 offers novel perspectives for antifungal drug design.
- Targeting Pma1 presents a viable strategy for developing new antifungal therapies.
- Further research into Pma1 structure-activity relationships can accelerate drug discovery.
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