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利用纳米孔进行单分子酶学和蛋白质测序

Harnessing nanopores for single-molecule enzymology and protein sequencing
课程网址: http://videolectures.net/preglov_maglia_harnessing_nanopores/  
主讲教师: Giovanni Maglia
开课单位: 格罗宁根大学
开课时间: 2018-09-25
课程语种: 英语
中文简介:
生物纳米孔是一类在脂膜上形成纳米孔径的膜蛋白。在外加电位下,通过纳米孔的离子电流用于识别分子或在单分子水平上跟踪反应。纳米孔电流具有优势,因为它们易于集成到低成本便携式分析设备中。在这里,我们表明蛋白质和肽通过纳米孔的运输可以很好地控制。折叠的蛋白质可以通过利用电泳力被捕获在纳米孔内,而小肽可以通过工程强电渗流通过纳米孔被拉伸和展开。利用这些方法,纳米孔可以用作单分子酶学研究的纳米级反应器,或用于在单个蛋白质通过纳米孔易位时测序的传感器。
课程简介: Biological nanopores are a class of membrane proteins that form nanometer-size apertures on lipid membranes. Under an applied potential the ionic current through nanopores is used to identify molecules or to follow reactions at the single-molecule level. Nanopores current are advantageous because they are easily integrated into low-cost and portable analytical devices. Here we show that the transport of proteins and peptides across nanopores can be finely controlled. Folded proteins can trapped inside nanopores by exploiting electrophoretic forces, while small peptides can be stretched and unfolded by engineering strong electroosmotic flows through the nanopore. Using these approaches, nanopores may be used as nanoscale reactor for single-molecule enzymology studies, or sensors for sequencing individual proteins as they translocate across the nanopore.
关 键 词: 纳米孔; 单分子酶学; 蛋白质测序
课程来源: 视频讲座网
数据采集: 2020-07-14:csy
最后编审: 2021-09-20:zyk
阅读次数: 69