在酸天然产品中,催化素侧链的酶交联
Ying Shi1, Yinzheng Xia1, Weijiang Gao1
1State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center of Nanjing University, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China. wanghuan@nju.edu.cn.
Natural product reports
|March 3, 2025
概括
胺残留物在生物活性循环中形成交叉链路至关重要,增强了它们的稳定性和功效. 最近的研究揭示了histidine的存在.
科学领域:
- 生物化学 生物化学
- 自然产品生物合成 自然产品生物合成
- 类化学 类化学
背景情况:
- 的宏环化是从核糖体和非核糖体来源产生生物活性循环的关键.
- 循环中的侧链交叉链条增加了稳定性和生物效力.
- 传统上,在交叉连接反应中,西斯蒂丁被认为是无反应的.
研究的目的:
- 为了突出希斯提丁 (His) 在宏环化中的重要作用.
- 为了探索天然循环中含有histidine的交叉链的流行程度.
- 研究这些交叉链的形成背后的酶机制.
主要方法:
- 关于化物宏环化研究近期进展的文献综述.
- 对已知的自然循环结构及其生物合成途径的分析.
- 专注于涉及histidine残留物的酶机制.
主要成果:
- 希斯蒂丁残留物比以前认为的更频繁地参与的宏环化.
- 含有histidine的交叉链路对循环的结构完整性和强度做出了重大贡献.
- 鉴定出了胺交叉链路形成的新型酶途径.
结论:
- 希斯蒂丁在循环生物合成中的作用比传统上被认可的更为广泛和重要.
- 了解胺中介交叉链接为自然产品药物发现提供了新的见解.
- 对这些酶机制的进一步研究可以解锁新的生物技术应用.
更多相关视频
10:01Combining Chemical Cross-linking and Mass Spectrometry of Intact Protein Complexes to Study the Architecture of Multi-subunit Protein Assemblies
Published on: November 28, 2017
19.6K
11:09Constructing Thioether/Vinyl Sulfide-tethered Helical Peptides Via Photo-induced Thiol-ene/yne Hydrothiolation
Published on: August 1, 2018
10.7K
相关概念视频
Peptide Bonds
A peptide bond covalently attaches amino acids through a dehydration reaction. One amino acid's carboxyl group and another amino acid's amino group combine, releasing a water molecule. The resulting bond is the peptide bond. The products that such linkages form are peptides. As more amino acids join this growing chain, the resulting chain is a polypeptide. Each polypeptide has a free amino group at one end. This end has the N-terminal, or the amino-terminal, and the other end has a free...
Ligand Binding and Linkage
Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked. In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence the...
