相关实验视频

Updated: Jun 29, 2025

Using Single Sensillum Recording to Detect Olfactory Neuron Responses of Bed Bugs to Semiochemicals

Using Single Sensillum Recording to Detect Olfactory Neuron Responses of Bed Bugs to Semiochemicals

Published on: January 18, 2016

异味剂结合蛋白8对Orius sauteri中的杀虫剂具有不同的结合特性

Zhe-Ran Wu¹, Yi-Wen Pei¹, Xiao-Qing Zhang²

¹State Key Laboratory of Biocatalysis and Enzyme Engineering, School of Life Sciences, Hubei University, Wuhan 430062, China.

Pesticide biochemistry and physiology

|April 6, 2024

概括

这项研究揭示了Orius sauteri香味结合蛋白8 (OsauOBP8) 如何与杀虫剂相互作用. 确定了关键的氨基酸残留物,改善了我们对这种有益昆虫中抗虫剂抵抗机制的理解.

科学领域:

昆虫学昆虫学是一门学科.
分子生物学分子生物学
生物化学生物化学

背景情况:

昆虫的化学传感系统对于它们的发育和生存至关重要.
(Orius sauteri) 是农业害虫的一个重要自然敌人.
在O. sauteri香料结合蛋白 (OBPs) 和杀虫剂之间的相互作用还不太清楚.

研究的目的:

研究OsauOBP8与常见杀虫剂的结合功能.
为了确定OsauOBP8和杀虫剂之间的特定分子相互作用.
阐明关键氨基酸残留在OsauOBP8-杀虫剂结合中的作用.

主要方法:

在体外表达OsauOBP8.8.
光竞争结合试验用于测试杀虫剂相互作用.
分子对接和位点定向突变发生,以确定关键残留物.

主要成果:

OsauOBP8对四种杀虫剂表现出结合性亲和力:西姆,费尼特洛,pyrifos和deltamethrin.
分子对接确定了六种参与结合的候选氨基酸残留物.
突变性表明,K4,K6和R31的残留物对OsauOBP8-杀虫剂相互作用至关重要.

结论:

OsauOBP8在O. sauteri.中对杀虫剂的化学感应中发挥着作用.
特定的氨基酸残留物 (K4,K6,R31) 对OsauOBP8与杀虫剂的相互作用至关重要.
这项研究提供了对OBP-杀虫剂结合的分子机制的见解,有助于害虫管理策略.

关键词:

杀虫剂是一种杀虫剂.体结合试验法体结合试验法气味剂结合蛋白质是气味剂结合蛋白质的一种.奥里乌斯·沙特里亚斯 (Orius sauteri) 是一个星.

更多相关视频

Electrophysiological Recording from Drosophila Trichoid Sensilla in Response to Odorants of Low Volatility

Electrophysiological Recording from Drosophila Trichoid Sensilla in Response to Odorants of Low Volatility

Published on: July 27, 2017

Localization of Odorant Receptor Genes in Locust Antennae by RNA In Situ Hybridization

Localization of Odorant Receptor Genes in Locust Antennae by RNA In Situ Hybridization

Published on: July 13, 2017

相关概念视频

Ligand Binding and Linkage

Ligand Binding and Linkage

Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked. In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...