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Updated: Jul 5, 2026

Synthesis and Characterization of 1,2-Dithiolane Modified Self-Assembling Peptides
09:54

Synthesis and Characterization of 1,2-Dithiolane Modified Self-Assembling Peptides

Published on: August 20, 2018

アルファ/ベータペプチドの螺旋状二次構造の結晶学的な特徴付けで,残基は1:1の交代で形成される

Soo Hyuk Choi1, Ilia A Guzei, Lara C Spencer

  • 1Department of Chemistry, University of Wisconsin, Madison, Wisconsin 53706, USA.

Journal of the American Chemical Society
|April 29, 2008
PubMed
まとめ

アルファ/ベータペプチドは,アミノ酸を交代して螺旋状の構造を形成します. 結晶学的データは,より長いペプチドが11ヘリックスよりも14/15ヘリクスを好むことを明らかにし,NMRの発見と一致しています.

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Formation of Ordered Biomolecular Structures by the Self-assembly of Short Peptides

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X-Ray Crystallography to Study the Oligomeric State Transition of the Thermotoga maritima M42 Aminopeptidase TmPep105011:27

X-Ray Crystallography to Study the Oligomeric State Transition of the Thermotoga maritima M42 Aminopeptidase TmPep1050

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Protein Organization

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.
The primary structure of a protein is its amino acid sequence.
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Protein Folding

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Protein Folding

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
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Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective. They may serve in transport, storage, or membranes; or they may be toxins or enzymes. Their structures, like their functions, vary greatly. They are all, however, amino acid polymers arranged in a linear sequence.
A protein's shape is critical to its function. For example, an enzyme can...
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The concept of prochirality leads to the nomenclature of the individual faces of a molecule and plays a crucial role in the enantioselective reaction. It is a concept where two or more achiral molecules react to produce chiral products. A typical process is the reaction of an achiral ketone to generate a chiral alcohol. Here, the achiral reactant reacts with an achiral reducing agent, sodium borohydride, to generate an equimolar mixture of the chiral enantiomers of the product. For example, an...