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Ring-opening metathesis polymerization or ROMP involves strained cycloalkenes as starting materials. The mechanism of ROMP proceeds by reacting cycloalkene with Grubbs catalyst to give metallacyclobutane intermediate which undergoes a ring-opening reaction to form new carbene. The new carbene reacts with another molecule of cycloalkene. Repetition of these steps leads to the formation of an unsaturated open-chain polymer product. All these steps are reversible, however, relieving the ring...
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Phosphoinositides are a group of phospholipids containing a glycerol backbone with two fatty acid chains and a phosphate attached to a myoinositol sugar ring. The inositol head group extends into the cytoplasm, where it is modified by adding phosphate groups to form phosphatidylinositol phosphates or PIPs.
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来自RiPP生物合成的工程双化物交叉链接P450产生替代循环.

Maxine Treisman1,2, Laura Coe3, Yongwei Zhao1,2

  • 1Department of Biochemistry and Molecular Biology, The Monash Biomedicine Discovery Institute, Monash University, EMBL Australia, Clayton, VIC 3800, Australia.

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概括
此摘要是机器生成的。

改造的P450酶现在可以创建新的循环三. 这项研究扩大了这些生物催化剂的使用范围,用于生产具有特定交叉链接模式的.

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科学领域:

  • 生物催化剂是一种生物催化剂.
  • 酶工程是什么? 酶工程是什么?
  • 类化学 类化学

背景情况:

  • 细胞染色体P450酶催化了核糖体编码 (RiPPs) 中的交联反应.
  • 这种P450介导的RiPP交叉链接是一个具有显著生物催化潜力的增长领域.
  • 现有的方法主要集中在特定的交叉链接模式上.

研究的目的:

  • 为了改造双化物交叉链接酶P450的活性位点.
  • 扩大P450介导交联的基质范围.
  • 为了证明新型循环三的生产与控制的交叉链接.

主要方法:

  • 在P450酶的活性部位的位点导向突变发生.
  • 在体外测试以评估合成基板上的交叉链接活性.
  • 使用质谱和其他生化技术分析产品.

主要成果:

  • 成功设计了P450Blt以形成His-X-Tyr交叉链接.
  • 使用工程酶证明了Tyr-X-Tyr交联的形成.
  • 在产生的循环三中达到受控的交叉链接状态.

结论:

  • P450Blt的活跃站点工程提供了一个多功能平台,用于生成多样化的循环三.
  • 这种方法扩大了细胞染色体P450酶在生物催化和合成中的实用性.
  • 这些发现为基于的新疗法和材料铺平了道路.