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DIALS / CCTBX: Serial crystallography computational methods aimed at biomolecular function

DIALS / CCTBX：针对生物分子功能的串行晶体学计算方法

基本信息

批准号：
10576330
负责人：
NICHOLAS K SAUTER
金额：
$ 71.13万
依托单位：
UNIVERSITY OF CALIF-LAWRENC BERKELEY LAB
依托单位国家：
美国
项目类别：
财政年份：
2016
资助国家：
美国
起止时间：
2016-03-16 至 2025-02-28
项目状态：
未结题

来源：
https://reporter.nih.gov/project-details/10576330
关键词：
Agreement Algorithms Architecture Area Back Biochemical Biological Cells Chemicals Code Communities Complex Computer software Computing Methodologies Coupled Crystallography Data Data Collection Data Set Diamond Electrons Enzymes France Generations Germany Grant Health Human Ions Light Link Maps Measurement Measures Metalloproteins Metals Methods Modeling Molecular Conformation Molecular Structure Motion Nucleic Acids Oxidation-Reduction Pattern Phase Physiologic pulse Physiological Productivity Proteins Publications Radiation induced damage Reaction Resolution Roentgen Rays Role Rotation Sampling Scientist Site Software Tools Source Spatial Distribution Spottings Structure Switzerland Synchrotrons Techniques Technology Technology Transfer Temperature Testing Time Uncertainty Work X ray spectroscopy X-Ray Crystallography absorption beamline chemical reaction computerized data processing detector electric field electron density enzyme mechanism enzyme structure experience experimental study improved instrumentation metalloenzyme novel strategies open source preservation radiation effect simulation structural biology success temperature jump x-ray free-electron laser

项目摘要

Basic biochemical mechanisms fundamental to human health arise from understanding the structure of large biological molecules, both proteins and nucleic acids. X-ray crystallography has been a key method for uncovering their structure and function. This project will develop computational methods needed to enable the use of serial X-ray crystallography techniques. Serial crystallography, performed at either third generation synchrotron beamlines or X-ray free-electron lasers (XFEL), is emerging as a way to determine molecular structure using crystals that are probed once with a short X-ray pulse and then exchanged for a new sample. This a departure from traditional single-crystal experiments where the crystal is rotated in the beam to assemble a full data set, but which require large crystals, coupled with cryocooling to slow down the effects of radiation damage. Serial crystallography, in contrast, is performed with an extremely short X-ray pulse, which probes the structure before radiation damage occurs, and at normal physiological temperatures, where the full range of available molecular conformations can be revealed. The software toolkits DIALS (Diffraction Integration for Advanced Light Sources) and CCTBX (Computational Crystallography Toolbox) extract information from the diffraction pattern consisting of Bragg spots, the analysis of which eventually leads to molecular structure. This proposal re-examines the established data processing patterns that have existed for many decades, and favors new models that are specifically customized for serial crystallography, making systematic corrections to the measurements that have not previously been treated properly. This will lead to improved accuracy, even to the level of locating a single electron in a protein. Software will be deployed in cooperation with several XFEL lightsources worldwide including but not limited to LCLS (Stanford), EuXFEL (Germany), and SwissFEL (Switzerland), and at several synchrotron sources such as SSRL (Stanford), ESRF (France), and Diamond (UK). Code will be distributed in an open source, community-oriented software architecture that can be adapted by beamline scientists to accommodate new instrumentation, in a field where rapid hardware advances are expected to continue for many years.

对人类健康至关重要的基本生物化学机制源于对蛋白质和核酸这两种大生物分子结构的理解。X射线晶体学已成为揭示其结构和功能的关键方法。该项目将开发使用连续X射线晶体学技术所需的计算方法。在第三代同步加速器光束线或X射线自由电子激光器（XFEL）上进行的连续晶体学正在成为一种使用晶体确定分子结构的方法，这些晶体用短X射线脉冲探测一次，然后交换新样品。这与传统的单晶实验不同，在传统的单晶实验中，晶体在光束中旋转以组装完整的数据集，但需要大晶体，再加上低温冷却以减缓辐射损伤的影响。相比之下，连续晶体学是用极短的X射线脉冲进行的，它在辐射损伤发生之前探测结构，并且在正常的生理温度下，可以揭示所有可用的分子构象。软件工具包DIALS（高级光源衍射积分）和CCTBX（计算晶体学）从由布拉格斑点组成的衍射图案中提取信息，对其进行分析最终导致分子结构。该提案重新审视了已经存在了几十年的既定数据处理模式，并支持专门为连续晶体学定制的新模型，对以前没有得到正确处理的测量进行系统校正。这将导致精确度的提高，甚至达到定位蛋白质中单个电子的水平。软件将与世界各地的几个XFEL光源合作部署，包括但不限于LCLS（斯坦福大学），EuXFEL（德国）和SwissFEL（瑞士），以及几个同步加速器源，如SSRL（斯坦福大学），ESRF（法国）和Diamond（英国）。代码将在一个开源的、面向社区的软件架构中分发，光束线科学家可以对该架构进行调整，以适应新的仪器，在这个领域，硬件的快速发展预计将持续多年。

项目成果

期刊论文数量（24）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Selling reduction versus Niggli reduction for crystallographic lattices.

晶格的销售还原与 Niggli 还原。

DOI：
10.1107/s2053273318015413
发表时间：
2019
期刊：
Acta crystallographica. Section A, Foundations and advances
影响因子：
0
作者：
Andrews,LawrenceC;Bernstein,HerbertJ;Sauter,NicholasK
通讯作者：
Sauter,NicholasK

DIALS: implementation and evaluation of a new integration package.

DOI：
10.1107/s2059798317017235
发表时间：
2018-02-01
期刊：
Acta crystallographica. Section D, Structural biology
影响因子：
0
作者：
Winter G;Waterman DG;Parkhurst JM;Brewster AS;Gildea RJ;Gerstel M;Fuentes-Montero L;Vollmar M;Michels-Clark T;Young ID;Sauter NK;Evans G
通讯作者：
Evans G

Chemical crystallography by serial femtosecond X-ray diffraction.

DOI：
10.1038/s41586-021-04218-3
发表时间：
2022-01
期刊：
Nature
影响因子：
64.8
作者：
Schriber EA;Paley DW;Bolotovsky R;Rosenberg DJ;Sierra RG;Aquila A;Mendez D;Poitevin F;Blaschke JP;Bhowmick A;Kelly RP;Hunter M;Hayes B;Popple DC;Yeung M;Pareja-Rivera C;Lisova S;Tono K;Sugahara M;Owada S;Kuykendall T;Yao K;Schuck PJ;Solis-Ibarra D;Sauter NK;Brewster AS;Hohman JN
通讯作者：
Hohman JN

A space for lattice representation and clustering.

用于晶格表示和聚类的空间。