Diamond Light Source, Research Complex at Harwell, and University of Oxford, Oxfordshire, OX11 0DE, UK.
BMC Biol. 2018 May 31;16(1):55. doi: 10.1186/s12915-018-0533-4.
A recent paper in BMC Biology presents a general method for mix-and-inject serial crystallography, to facilitate the visualization of enzyme intermediates via time-resolved serial femtosecond crystallography (tr-SFX). They apply their method to resolve in near atomic detail the cleavage and inactivation of the antibiotic ceftriaxone by a β-lactamase enzyme from Mycobacterium tuberculosis. Their work demonstrates the general applicability of time-resolved crystallography, from which dynamic structures, at atomic resolution, can be obtained.See research article: https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-018-0524-5 .
最近在 BMC 生物学杂志上发表的一篇论文提出了一种混合注入式连续结晶学的通用方法,以通过时间分辨连续飞秒结晶学(tr-SFX)来促进酶中间产物的可视化。他们将该方法应用于解析结核分枝杆菌β-内酰胺酶对抗生素头孢曲松的切割和失活,分辨率达到近原子水平。他们的工作证明了时间分辨结晶学的普遍适用性,从中可以获得动态结构,达到原子分辨率。参见研究文章:https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-018-0524-5 。