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一切Old又是新的:结构,功能和生物信息学的进步如何重新定义了一个被忽视的核酶家族

Elena Wanvig Dot¹, Lynn C Thomason², Joshua S Chappie¹

¹Department of Molecular Medicine, Cornell University, Ithaca, New York, USA.

Molecular microbiology

|May 31, 2023

概括

克服 lysogenization 缺陷 (OLD) 蛋白质对于抗菌素防御至关重要的 ATP 驱动核酶. 基于基因上下文,生物化学和结构的新分类方案有助于理解这些多样化的酶及其与其他防御系统的关系.

科学领域:

分子生物学分子生物学
生物化学生物化学
结构生物学结构生物学

背景情况:

克服 lysogenization 缺陷 (OLD) 蛋白质是必不可少的 ATP 驱动核酶,参与细菌抗菌菌体防御机制.
最近生物信息学,遗传学和晶体学方面的进展为OLD蛋白质结构,功能和进化轨迹提供了新的见解.

研究的目的:

审查研究OLD蛋白质的最新进展.
提出一个新的分类方案来对OLD同类进行分类.
将OLD核酶置于更广泛的抗菌素防御系统 (如PARIS和Septu) 中.

主要方法:

对基因社区的生物信息分析.
对生物化学性质的评估.
检查领域组织和催化机械.
与PARIS和Septu防御系统进行比较分析.

主要成果:

已经开发了一个新的OLD同类的分类方案,整合了基因上下文,生物化学数据,域结构和催化机制.
这种分类法强调了不同OLD蛋白家族之间的保存特征和关键区别.
已经阐明了OLD核酶和其他抗菌素系统 (包括PARIS和Septu) 之间的关系.

结论:

拟议的分类为了解OLD蛋白质的多样性和功能提供了一个框架.
该方案将有助于解释与OLD核酶相关的未来实验发现.
需要进一步的研究来解决关于OLD蛋白在抗菌素防御中的作用的突出的机制问题.

关键词:

这是ABC ATPase.盖比亚·加比亚 (Gabiya Gabija) 是一个旧的核酶可以使用.巴黎 - 巴黎 - 巴黎 - 巴黎七月七月七月托普里姆 (Toprim) 是一个多普里姆.菌体防御系统的防御这是一个反向的Retron.

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