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Peptide Bonds

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...

Protein Folding

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
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...

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Related Experiment Video

Updated: Sep 24, 2025

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

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

Published on: November 21, 2013

Aromatic interactions directing peptide nano-assembly.

Sajitha Sasidharan¹, Vibin Ramakrishnan¹

¹Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India.

Advances in Protein Chemistry and Structural Biology

|May 9, 2022

Summary

This summary is machine-generated.

Aromatic π-π stacking drives the self-assembly of stable peptide nanostructures. This chapter explores how these interactions guide the design and application of functional nanomaterials.

Keywords:

Aromatic interactions Nanostructures Peptides Self-assembly Supramolecular chemistry

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Last Updated: Sep 24, 2025

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

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Published on: November 21, 2013

A Tripeptide-Stabilized Nanoemulsion of Oleic Acid

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Published on: February 27, 2019

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly

Published on: February 6, 2020

Area of Science:

Supramolecular Chemistry
Nanotechnology
Materials Science

Background:

Self-assembly is a fundamental process where molecules spontaneously organize via non-covalent interactions.
Nanoscale self-assembly offers a powerful bottom-up approach for fabricating functional nanostructures.
Aromatic π-π stacking is a key interaction for stable supramolecular association in self-assembled structures.

Purpose of the Study:

To elucidate the role of π-π interactions in directing and regulating peptide nanostructure self-assembly.
To provide a comprehensive understanding of the supramolecular chemistry governing aromatic interactions in materials.
To bridge the gap between fundamental understanding and the design of novel functional nanomaterials.

Main Methods:

Review of the history and mechanisms of aromatic π-π interactions.
Analysis of design strategies for assembling peptides with aromatic rings.
Examination of conditions influencing aromatic stacking and resulting nanoassembly properties.

Main Results:

Aromatic π-π interactions are crucial for the persistent association of subunits in stable self-assembled structures.
Understanding these interactions enables the rational design of peptide-based nanomaterials.
The properties and applications of materials formed via aromatic stacking are highlighted.

Conclusions:

Aromatic π-π interactions are pivotal in the controlled self-assembly of peptide nanostructures.
This understanding is vital for constructing advanced functional materials and revealing biological assembly mechanisms.
Weak interactions, particularly π-π stacking, are instrumental in designing novel supramolecular materials.