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相关概念视频

Translocation of Proteins into the Mitochondria01:19

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Mitochondrial precursors are translocated to the internal subcompartments via independent mechanisms involving distinct protein machineries called translocases.
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Mitochondrial outer membrane proteins are of two types: the transmembrane, beta-barrel porins, and the membrane-anchored, alpha-helical proteins. Beta-barrel porin precursors are translocated by the TOM complex and inserted into the outer mitochondrial membrane by the SAM complex. In contrast,...
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Proteins are polymers of amino acids linked together by peptide bonds. Proteins and polypeptides are interchangeably used to refer to long chains of amino acids. However, polypeptides have a molecular weight of fewer than 10,000 daltons, while proteins have greater molecular weight.  Polypeptides with less than 20 amino acids are called oligopeptides or simply peptides. Interactions among the constituent amino acid side chains of proteins help them fold into a stable 3-dimensional...
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Ynamide-Mediated Ketone Synthesis.

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Updated: Jul 4, 2025

Facile Protocol for the Synthesis of Self-assembling Polyamine-based Peptide Amphiphiles PPAs and Related Biomaterials
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使用暂时受保护的氨基酸进行逆合成

Tao Liu1, Zejun Peng1, Manting Lai1

  • 1Affiliated Cancer Hospital, Guangdong Provincial Key Laboratory of Molecular Target & Clinical Pharmacology, School of Pharmaceutical Sciences, Guangzhou Medical University, No.1 Xinzao, Panyu District, Guangzhou 511436, China.

Journal of the American Chemical Society
|February 5, 2024
PubMed
概括
此摘要是机器生成的。

一种新型的 ynamide 合试剂能够使用未受保护的氨基酸进行反向合成,克服了 60 年的挑战. 这种具有成本效益的绿色化学方法有助于有效制造治疗性.

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科学领域:

  • 有机化学
  • 医学化学
  • 绿色化学

背景情况:

  • 疗法正在经历复苏, 推动对高效制造的需求.
  • 传统的合成 (C → N) 依赖于保护组,导致步骤和原子经济不佳.
  • 使用未受保护的氨基酸的逆合成 (N → C) 是可取的,但受到种族化的困扰.

研究的目的:

  • 制定一个具有成本效益和环保的制造战略.
  • 在逆合成中克服长期存在的种族化挑战.
  • 使用未受保护的氨基酸实现切实可行的合成.

主要方法:

  • 开发一种新型的合剂.
  • 实施一次性激活,保护,氨解和解除保护的临时保护策略.
  • 通过合成活性药物成分来证明强度.

主要成果:

  • 在N → C链延长中成功解决了种族化/表皮化问题.
  • 使用未受保护的氨基酸作为起始材料实现了实用的合成.
  • 用于大规模生产和碎片凝结的绿色溶剂的证明兼容性.

结论:

  • 具有过渡保护的合化反应剂为反向合成提供了实用解决方案.
  • 这种方法为制造提供了成本高效,操作方便,环境良好的方法.
  • 这一战略增强了治疗药物的大规模生产潜力.