Related Experiment Video
Updated: Jun 18, 2026

Identifying Protein-protein Interaction Sites Using Peptide Arrays
Published on: November 18, 2014
Detection of multiple network-based allosteric interactions between peptides and arrays of DNA binding sites
Karen K L Kao1, Jonathan C T Huang, Chi-Kai Yang
1Department of Chemistry and Life Science Center, Tunghai Christian University, Taichung 407, Taiwan, ROC.
Abstract:
Quantitative DNase I footprinting shows that three designed peptides containing N-methylpyrrole (Py) moieties display different types of network-based allosteric communication in binding to DNA: circuit type, incomplete-circuit type, and non-circuit type characterized by interstrand bidentate interactions. Positive cooperative binding of all three peptides to individual DNA binding sites is commonly observed. CD spectral characterization of the interaction between peptides and model undecanucleotide duplexes is consistent with the footprinting results and supports the allosteric model. This study provides insights relating to the interaction network nature of allostery in complex DNA-small molecule interactions.
Related Concept Videos
DNA Microarrays
Protein Networks
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Protein-protein Interfaces

