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Updated: Jan 10, 2026

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

Sequence shuffle controls morphological consequences in a self-assembling tetrapeptide.

K B Joshi¹, Sandeep Verma

¹Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur-208 016 (UP), India.

Journal of Peptide Science : an Official Publication of the European Peptide Society

|November 17, 2007

Summary

This summary is machine-generated.

Shuffling two amino acids in synthetic tetrapeptides dramatically alters their self-assembly into distinct nanostructures. This highlights how residue order influences peptide aggregation pathways and final ultrastructures.

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Published on: November 21, 2013

Area of Science:

Supramolecular chemistry
Biomolecular self-assembly
Nanotechnology

Background:

Peptide and protein self-assembly is crucial in chemistry and biology.
Nanoscopic building blocks form supramolecular aggregates stabilized by noncovalent interactions.
Amino acid side chains dictate secondary structures and conformational preferences in peptide aggregates.

Purpose of the Study:

To investigate the impact of amino acid sequence on nanoscale morphologies.
To explore self-assembly differences in synthetic tetrapeptide mutants derived from antamanide.
To understand how shuffling phenylalanine and proline residues affects aggregation pathways.

Main Methods:

Synthesis of antamanide-derived tetrapeptide mutants.
Alteration of primary sequences by shuffling phenylalanine and proline residues.
Characterization of resulting nanoscale morphologies and ultrastructures.

Main Results:

Significant differences in nanoscale morphologies were observed between tetrapeptide mutants.
Primary sequence shuffling led to contrasting ultrastructures.
The context-dependent location of proline and phenylalanine residues influences aggregational pathways.

Conclusions:

The precise arrangement of amino acids, even with minor sequence changes, profoundly impacts peptide self-assembly.
Tetrapeptide sequence order is a critical determinant of resulting supramolecular structures.
Understanding these structure-assembly relationships is key for designing novel peptide-based nanomaterials.