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Updated: Jul 24, 2025

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通过冷EM揭示尿膜中的液晶脂质

Haruaki Yanagisawa¹, Yoshihiro Kita^2,3, Toshiyuki Oda⁴

¹Department of Cell Biology and Anatomy, Graduate School of Medicine, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.

bioRxiv : the preprint server for biology

|July 3, 2023

概括

泌尿器皮是什么? 泌尿器皮是什么?

科学领域:

生物化学生物化学
细胞生物学细胞生物学
结构生物学结构生物学

背景情况:

尿的不对称单元膜 (AUM),富含尿,形成一个关键的透性障碍.
此前,AUM和尿素复合物的高分辨率结构数据缺乏.
了解这种结构是尿路完整性和感染预防的关键.

结论:

这些发现阐明了尿膜的透性屏障功能的结构基础.
这项研究阐明了尿蛋白复合体的组织及其与特定脂质的相互作用.
对尿路膜结构的洞察力可以为预防尿路感染的策略提供信息.

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Cryo-electron Microscopy

Cryo-electron Microscopy

Conventional electron microscopy (EM) involves dehydration, fixation, and staining of biological samples, which distorts the native state of biological molecules and results in several artifacts. Also, the high-energy electron beam damages the sample and makes it difficult to obtain high-resolution images. These issues can be addressed using cryo-EM, which uses frozen samples and gentler electron beams. The technique was developed by Jacques Dubochet, Joachim Frank, and Richard Henderson, for...