Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 71, Issue 37, Pages 13645-13653Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.3c02823
Keywords
telosma mosaic virus(TeMV); viral protein genome-linkedprotein (VPg); benzenesulfonamide derivatives; interaction; antiviral activities
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The viral protein genome-linked protein of telosma mosaic virus plays an important role in viral reproduction. This study explored the expression conditions of the protein and synthesized a series of novel compounds. The compounds exhibited excellent binding affinity to the viral protein and inhibited its expression.
The viral protein genome-linked protein (VPg) of telosma mosaic virus (TeMV) plays an important role in viral reproduction. In this study, the expression conditions of TeMV VPg were explored. A series of novel benzenesulfonamide derivatives were synthesized. The binding sites of the target compounds and TeMV VPg were studied by molecular docking, and the interaction was verified by microscale thermophoresis. The study revealed that the optimal expression conditions for TeMV VPg were in Escherichia coli Rosetta with IPTG concentration of 0.8 mM and induction temperature of 25 degrees C. Compounds A4, A6, A9, A16, and A17 exhibited excellent binding affinity to TeMV VPg, with K-d values of 0.23, 0.034, 0.19, 0.086, and 0.22 mu M, respectively. LYS 121 is the key amino acid site. Compounds A9 inhibited the expression of TeMV VPg in Nicotiana benthamiana. The results suggested that TeMV VPg is a potential antiviral target to screen anti-TeMV compounds.
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