相关实验视频

Updated: Jan 12, 2026

A Sample Preparation Pipeline for Microcrystals at the VMXm Beamline

A Sample Preparation Pipeline for Microcrystals at the VMXm Beamline

Published on: June 17, 2021

蛋白质X射线结晶学样本输送方法,特别关注样本消耗

Abhik Manna^1,2, Diandra Doppler^1,2, Manasa P Sripati²

¹School of Molecular Sciences, Arizona State University, Tempe, AZ, USA.

Nature communications

|November 7, 2025

概括

序列结晶学 (SX) 通过确定蛋白质结构来推进结构生物学. 本综述考察了样本输送方法,以尽量减少珍贵样本的消耗,使更广泛的生物研究.

科学领域:

结构生物学结构生物学
生物物理学的生物物理.
生物化学生物化学

背景情况:

序列结晶学 (SX) 是一种强大的技术,用于高分辨率的蛋白质结构确定.
大分子样本的有限可用性在SX中构成了重大挑战.
高效的样本利用对于最大限度地发挥先进的X射线源的潜力至关重要,例如同步子和X射线自由电子激光器 (XFEL).

研究的目的:

审查和评估串行晶体学当前的样本输送系统.
为突出减少蛋白质研究样本消耗的进展.
根据最低样本要求来比较不同的方法.

主要方法:

专注于三个主要样本输送系统:固定目标,液体注射和混合方法.
总结关于样本消费的每个方法的进展和挑战.
将报告的样本交付方法与数据收集所需的理论最小样本进行比较.

主要成果:

对SX的固定目标,液体注射和混合样本输送系统的分析.
识别尽量减少样本使用的进展.
在样本消耗中比较当前方法的效率.

结论:

在SX中减少样本消耗对于研究更广泛的生物样本至关重要.
目前的样本交付方法取得了进展,但仍有改进的余地,以达到理论最小值.
提供了对样本交付方法的全面评估,以指导未来的SX研究.

更多相关视频

Preparation and Delivery of Protein Microcrystals in Lipidic Cubic Phase for Serial Femtosecond Crystallography

Preparation and Delivery of Protein Microcrystals in Lipidic Cubic Phase for Serial Femtosecond Crystallography

Published on: September 20, 2016

Improving High Viscosity Extrusion of Microcrystals for Time-resolved Serial Femtosecond Crystallography at X-ray Lasers

Improving High Viscosity Extrusion of Microcrystals for Time-resolved Serial Femtosecond Crystallography at X-ray Lasers

Published on: February 28, 2019

相关概念视频

$X-ray Diffraction of Biological Samples$ 01:10

X-ray Diffraction of Biological Samples

X-ray diffraction or XRD is an analytical tool that utilizes X-rays to study ordered structures such as crystalline organic and inorganic samples, polycrystalline materials, proteins, carbohydrates, and drugs.
According to Bragg's law, when X-rays strike the sample positioned on a stage, the rays are scattered by the electron clouds around the sample atoms. The X-ray diffraction or scattering is caused by constructive interference of the X-ray waves that reflect off the internal...