Détail du document
Identifiant
doi:10.1186/s12866-023-02843-8...
Auteur
Wang, Jingjing Weng, Qunfang Zhang, Ke Hu, QiongboLangue
enEditeur
BioMed Central
Catégorie
Mycology
Année
2023
Date de référencement
05/04/2023
Mots clés
destruxin binding protein mode of action ... study metarhizium cell daRésumé
Destruxin A (DA) is a cyclo-hexadepsipeptidic insecticidal mycotoxin isolated from the entomopathogenic fungi, Metarhizium spp.
However, its mode of action is unknown.
In this study, we isolated 149 candidate DA-binding proteins by drug affinity response target stability, and determined the interactions of 80 canditates with DA in vitro by surface plasmon resonance.
The affinity coefficients (K_D) ranged from 24 to 469 μM.
Binding proteins were functionally diverse and included cytoskeletal components and cell motility, protein transcription and translation pathways, ubiquitin dependent protein metabolic processes, nucleus pore entry and exit, and endoplasmic reticulum vesicle transport and etc.
Electron microscopy revealed that DA damaged the cytoskeleton and multiple organelles, disrupted cell adhesion and motility, and led to cell death.
DA appeared to have a multi-targeted approach to cellular structures and multiple life processes, leading to cell death.
The results of this study could provide molecular evidence for the analysis of the insecticidal toxicology of DA and further improve the study of the pathogenic insect mechanism of Metarhizium .
Wang, Jingjing,Weng, Qunfang,Zhang, Ke,Hu, Qiongbo, 2023, Binding proteins of destruxin A from Metarhizium against insect cell, BioMed Central
