相关实验视频

Updated: Jun 14, 2025

Optimizing the Genetic Incorporation of Chemical Probes into GPCRs for Photo-crosslinking Mapping and Bioorthogonal Chemistry in Live Mammalian Cells

Optimizing the Genetic Incorporation of Chemical Probes into GPCRs for Photo-crosslinking Mapping and Bioorthogonal Chemistry in Live Mammalian Cells

Published on: April 9, 2018

用于将芳香后翻译修饰类似物定位化安装为蛋白质的多功能方法

Xiaoxi Lin¹, Shaswati Mandal², Raj V Nithun¹

¹School of Chemistry, Raymond and Beverly Sackler Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel.

Journal of the American Chemical Society

|September 3, 2024

概括

研究人员开发了一种新的化学方法,精确地为蛋白质添加化和化等芳香后翻译修饰物 (PTM). 这种技术可以更有效地研究蛋白质功能和疾病.

科学领域:

生物化学
化学生物学
蛋白质组学

背景情况:

转化后修饰 (PTM) 对蛋白质调节至关重要,而氨酸 (Tyr) PTM 对健康和疾病产生影响.
目前在模仿和引入芳香PTM方面的局限性阻碍了对其作用的理解.
需要专门安装芳香PTM在蛋白质中的工具.

研究的目的:

开发一种易于在特定场所化学安装芳香PTM的方法.
为了研究Tyr-PTM,包括化和化类似物.
用于发现应用程序生成已修改蛋白质的同质库.

主要方法:

在环境条件下利用介导的S-C(sp2) 键形成.
将新型PTM如化和化类型纳入和蛋白质中.
应用该方法来制造修饰的Myc,Max和α-synuclein (α-Syn) 蛋白.

主要成果:

在几分钟内证明了芳香PTM的快速,特定地点的引入,产量很好.
成功制备了10种特定位点修饰的蛋白质,包括化和化Myc和Max类似物.
创建了一个修改的α-Syn库,揭示了对抗修改在聚合中的作用.

结论:

开发的方法允许快速和选择性地将芳香PTM转化为重组蛋白.
这种方法有助于创建用于生物标志物和药物发现的同质PTM库.
能够进行机制研究,并更深入地了解Tyr-PTM在健康和疾病中的作用.

更多相关视频

Efficient and Site-specific Antibody Labeling by Strain-promoted Azide-alkyne Cycloaddition

Efficient and Site-specific Antibody Labeling by Strain-promoted Azide-alkyne Cycloaddition

Published on: December 23, 2016

Monitoring the Assembly of a Secreted Bacterial Virulence Factor Using Site-specific Crosslinking

Monitoring the Assembly of a Secreted Bacterial Virulence Factor Using Site-specific Crosslinking

Published on: December 17, 2013

相关概念视频

Tagging and Fusion Proteins

Tagging and Fusion Proteins

Proteins are involved in several cellular processes and biochemical reactions. Analyzing a specific protein of interest requires it to be isolated from the other proteins in the cell. This is achieved by overexpressing the specific gene in a suitable host to produce large quantities of the target protein. A tag or label is recombined with the gene to produce a fusion protein containing the target protein and the tag. The tags on these fusion proteins can then be used for easy detection and...