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相关概念视频

Protein Folding01:25

Protein Folding

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Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
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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...
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Different fluorescence-based techniques are used to study the protein dynamics in living cells. These techniques include FRAP, FRET, and PET.
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Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
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相关实验视频

Updated: Mar 6, 2026

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
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脊柱受约束的三可以对固态动态进行序列控制.

Kuntrapakam Hema1, Hamish W A Swanson1, Elma Naranjo1,2

  • 1Advanced Science Research Center (ASRC), The Graduate Center of the City University of New York, New York, USA.

Angewandte Chemie (International ed. in English)
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PubMed
概括
此摘要是机器生成的。

具有特定芳香残留的极小主义三体显示了序列如何决定固态材料的特性. 芳香残留物类型控制形状,影响结晶和由此产生的材料动态和表面特征.

关键词:
非共价相互作用的非共价相互作用.酸组合的组合.类结晶的类结晶.超分子动力学 超分子动力学托芬三聚氨酸是什么

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科学领域:

  • 材料科学 材料科学 材料科学
  • 生物分子工程 生物分子工程
  • 化学物理 化学物理

背景情况:

  • 基于的材料的合理设计受到序列,超分子组合和固态特性之间的复杂关系的阻碍.
  • 控制的结构动态是定制材料特性的关键.

研究的目的:

  • 为了研究简单的芳香残留物替代在极简主义三中如何影响超分子动力学和固态材料特性.
  • 建立基于序列的材料的工程动态性质的设计原则.

主要方法:

  • 利用N终端的普罗林来刚化PXX三中的骨 (普罗林,芳香残留X).
  • 采用分子动力学模拟,NMR光谱和光光谱来分析形状和动力学.
  • 进行了固态表征,以将分子动力学与散装材料特性相关联.

主要成果:

  • 具有C端酸 (PXW) 的体表现出适应性构造,并促进结晶,形成刚性,动态,可湿的晶体.
  • 具有C端氨酸 (PXF) 的采用了受限制的构造,导致可溶性聚合物和静态,疏水性材料.
  • 芳香残留物类型 (W与F) 显著改变了能景观和相互作用空间,决定了组装路径.

结论:

  • 芳香残留物是材料中超分子组合,结晶行为和固态动态的关键决定因素.
  • 序列编码的形状适应性为设计动态和功能固态材料提供了直接的途径.