Zhang Xinrong, Zhang Zhenhua, Chen Xiao-Lin
State Key Laboratory of Agricultural Microbiology, Provincial Key Laboratory of Plant Pathology of Hubei Province, College of Plant Science and Technology, Huazhong Agricultural University, Wuhan, China.
State Key Laboratory of Agrobiotechnology, Ministry of Agriculture Key Laboratory for Plant Pathology, China Agricultural University, Beijing, China.
Front Microbiol. 2021 Mar 10;12:648894. doi: 10.3389/fmicb.2021.648894. eCollection 2021.
Redox modification, a post-translational modification, has been demonstrated to be significant for many physiological pathways and biological processes in both eukaryotes and prokaryotes. However, little is known about the global profile of protein redox modification in fungi. To explore the roles of redox modification in the plant pathogenic fungi, a global thiol proteome survey was performed in the model fungal pathogen . A total of 3713 redox modification sites from 1899 proteins were identified through a mix sample containing mycelia with or without oxidative stress, conidia, appressoria, and invasive hyphae of . The identified thiol-modified proteins were performed with protein domain, subcellular localization, functional classification, metabolic pathways, and protein-protein interaction network analyses, indicating that redox modification is associated with a wide range of biological and cellular functions. These results suggested that redox modification plays important roles in fungal growth, conidium formation, appressorium formation, as well as invasive growth. Interestingly, a large number of pathogenesis-related proteins were redox modification targets, suggesting the significant roles of redox modification in pathogenicity of . This work provides a global insight into the redox proteome of the pathogenic fungi, which built a groundwork and valuable resource for future studies of redox modification in fungi.
氧化还原修饰作为一种翻译后修饰,已被证明在真核生物和原核生物的许多生理途径和生物学过程中具有重要意义。然而,关于真菌中蛋白质氧化还原修饰的整体情况却知之甚少。为了探究氧化还原修饰在植物病原真菌中的作用,我们在模式真菌病原体中进行了一项全局硫醇蛋白质组调查。通过一个包含有或无氧化应激的菌丝体、分生孢子、附着胞和侵染菌丝的混合样本,共鉴定出1899个蛋白质上的3713个氧化还原修饰位点。对鉴定出的硫醇修饰蛋白进行了蛋白质结构域、亚细胞定位、功能分类、代谢途径和蛋白质-蛋白质相互作用网络分析,结果表明氧化还原修饰与广泛的生物学和细胞功能相关。这些结果表明,氧化还原修饰在真菌生长、分生孢子形成、附着胞形成以及侵染生长中发挥着重要作用。有趣的是,大量与致病相关的蛋白质是氧化还原修饰的靶点,这表明氧化还原修饰在其致病性中具有重要作用。这项工作提供了对病原真菌氧化还原蛋白质组的全局认识,为未来真菌氧化还原修饰研究奠定了基础并提供了宝贵资源。