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Tandem Mass Spectrometry

Tandem Mass Spectrometry

Tandem mass spectrometry is a technique that uses multiple mass analyzers in series to obtain a higher selectivity and reduce chemical noise during analyte detection. Instruments with multiple analyzers separated by an interaction cell enable secondary fragmentation and selected study of the fragment ions.Secondary fragmentations occur in the interaction cell and can be induced by various factors. Fragmentation induced by collision with inert gases, such as N2, Ar, He, etc., is called...

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Updated: Jun 21, 2026

Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering

Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering

Published on: November 5, 2018

缩放和合并的宏分子扩散散散与mdx2.

Steve P Meisburger¹, Nozomi Ando²

¹Cornell High Energy Synchrotron Source, Cornell University, Ithaca, New York 14850, USA.

bioRxiv : the preprint server for biology

|January 31, 2024

概括

我们开发了mdx2,这是一个Python软件包,简化了从宏分子结晶学 (MX) 实验中处理分散散射数据的过程. 该工具通过准确,可重复测量弱分散信号来增强蛋白质动态的分析.

科学领域:

结构生物学结构生物学
生物物理学的生物物理.
晶体学晶体学是指结晶学.

背景情况:

宏分子结晶学 (MX) 实验提供了来自布拉格强度的平均电子密度.
分散散射提供了对蛋白质动力学和相关运动的补充见解.
当前的扩散散射数据处理可能很复杂,难以获得.

研究的目的:

介绍 mdx2,一个易于使用和可扩展的软件,用于处理分散散射数据.
以促进使用宏分子晶体学分析蛋白质动态.
为了提高扩散散射数据分析的可访问性和可重复性.

主要方法:

在Python中开发mdx2软件,与DIALS进行接口以减少数据.
使用NeXus格式用于数据存储的独立数据减少工作流程的实施.
在mdx2.2.中创建一个多晶体缩放和合并工作流.
使用立方体胰岛素的高冗余数据集进行测试和验证.

主要成果:

mdx2提供了一个方便且可扩展的平台,用于分散散射数据处理.
该软件通过命令行或包导入 (例如,Jupyter笔记本电脑) 实现可重复计算.

关键词:

处理数据的数据处理.扩散散的散射是一种分散的散射.宏分子晶体学宏分子晶体学互惠空间映射互惠空间映射软件软件软件软件软件

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Structure Solution of the Fluorescent Protein Cerulean Using MeshAndCollect

Structure Solution of the Fluorescent Protein Cerulean Using MeshAndCollect

Published on: March 19, 2019

Assembly and Characterization of Polyelectrolyte Complex Micelles

Assembly and Characterization of Polyelectrolyte Complex Micelles

Published on: March 2, 2020

相关实验视频

Last Updated: Jun 21, 2026

Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering

Structural Studies of Macromolecules in Solution using Small Angle X-Ray Scattering

Published on: November 5, 2018

Structure Solution of the Fluorescent Protein Cerulean Using MeshAndCollect

Structure Solution of the Fluorescent Protein Cerulean Using MeshAndCollect

Published on: March 19, 2019

Assembly and Characterization of Polyelectrolyte Complex Micelles

Assembly and Characterization of Polyelectrolyte Complex Micelles

Published on: March 2, 2020

一个多晶体缩放工作流程有效地使用数据冗余来纠正系统错误.

通过精确和可重现的测量,可以实现弱分散信号的测量.

结论:

mdx2版本1.0显著提高了MX中扩散散散分析的可访问性.
该软件利用数据冗余来提高分散信号测量的准确性.
mdx2通过改进的数据处理能力,可以更深入地了解蛋白质动态.