相关实验视频

Updated: Jan 16, 2026

Potato Virus X-Based microRNA Silencing VbMS In Potato.

Potato Virus X-Based microRNA Silencing VbMS In Potato.

Published on: May 11, 2020

基于土豆病毒Y基因组中的G-四重复结构的抑制剂的向发现

Chao Gao¹, Yang Xu¹, Tao Wang²

¹National R&D Center for Se-rich Agricultural Products Processing, Hubei Engineering Research Center for Deep Processing of Green Se-rich Agricultural Products, School of Modern Industry for Selenium Science and Engineering, Wuhan Polytechnic University, Wuhan, China.

Pest management science

|September 26, 2025

概括

马病毒Y (PVY) 中的新型G-四重复 (G4) 结构调节病毒基因表达. 针对这些G4结构的特定配体显示出高结合亲和力并抑制PVY增殖,提供新的抗病毒策略.

科学领域:

病毒学病毒学
分子生物学分子生物学
药物发现药物发现药物发现

背景情况:

马病毒Y (PVY) 由于其广泛的宿主范围,对作物生产构成重大威胁.
在氨酸丰富的序列中发现的G-四重复 (G4) 结构正在成为抗病毒和抗瘤剂的关键治疗标.
未翻译区域内的G4s可以调节基因表达.

研究的目的:

在PVY基因组中识别和描述G-四重复 (G4) 结构.
研究这些G4结构作为PVY抑制的标的潜力.
评估已知的G4结合联体对PVY的疗效.

主要方法:

在PVY基因组中的G-四重复 (G4) 结构的生物信息识别.
确定G4的结构分析,包括PQS10.
异热定位热量计用于评估连接体 (BRACO-19,RHPS4,TMPyP4) 与PQS10的结合亲和力.
双 luciferase 记者基因测定用于测量 PVY 基因表达的抑制.

主要成果:

在PVY基因组中确定了10个G-四重复 (G4) 结构,其中PQS10位于3'-未翻译区域.
PQS10可能形成一个二维的G4结构.
BRACO-19,RHPS4和TMPyP4对PQS10表现出高的结合亲和力,稳定了G4结构.
这些配体通过插入到PQS10将PVY基因表达抑制了75%以上.

结论:

在PVY基因组中的G-四重复 (G4) 结构对于病毒增殖至关重要.
用特定的配体向PVY G4结构,为开发新型抗病毒疗法提供了一个有前途的战略.
这项研究为抑制PVY的新方法提供了基础.

关键词:

3′-未翻译的区域在G-四重复合体中.抗病毒向的目标是抗病毒.土豆病毒Y土豆病毒Y

更多相关视频

Analysis of Group IV Viral SSHHPS Using In Vitro and In Silico Methods

Analysis of Group IV Viral SSHHPS Using In Vitro and In Silico Methods

Published on: December 21, 2019

Author Spotlight: Characterizing DNA G-Quadruplex by Bis-3-Chloropiperidine Based Chemical Mapping

Author Spotlight: Characterizing DNA G-Quadruplex by Bis-3-Chloropiperidine Based Chemical Mapping

Published on: May 12, 2023

相关概念视频

Subviral Agents

Subviral Agents

Subviral agents are infectious entities that resemble viruses but lack one or more viral components, such as a capsid or essential replication machinery. These agents include viroids, prions, and satellites, each possessing distinct structural and functional characteristics that influence their mode of infection and replication.Viroids are the simplest subviral agents, consisting of circular, single-stranded RNA molecules without a protein coat. They exclusively infect plants, relying entirely...

Leaky Scanning

Leaky Scanning

During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R...