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Updated: Mar 22, 2026

Identifying Protein-protein Interaction Sites Using Peptide Arrays
Published on: November 18, 2014
Protein-protein interaction analysis for functional characterization of helicases
Boris L Zybailov1, Alicia K Byrd1, Galina V Glazko2
1Department of Biochemistry and Molecular Biology, University of Arkansas for Medical Sciences, Little Rock, AR 72205, United States.
Abstract:
Helicases are enzymes involved in nucleic acid metabolism, playing major roles in replication, transcription, and repair. Defining helicases oligomerization state and transient and persistent protein interactions is essential for understanding of their function. In this article we review current methods for the protein-protein interaction analysis, and discuss examples of its application to the study of helicases: Pif1 and DDX3. Proteomics methods are our main focus - affinity pull-downs and chemical cross-linking followed by mass spectrometry. We review advantages and limitations of these methods and provide general guidelines for their implementation in the functional analysis of helicases.
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