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Updated: Jun 21, 2026

Probing High-density Functional Protein Microarrays to Detect Protein-protein Interactions
Published on: August 2, 2015
Protein-binding microarrays: probing disease markers at the interface of proteomics and genomics
Jan Kerschgens1, Tanja Egener-Kuhn, Nicolas Mermod
1Institute of Biotechnology, University of Lausanne, CH-1015 Lausanne, Switzerland.
Abstract:
DNA-binding proteins mediate a variety of crucial molecular functions, such as transcriptional regulation and chromosome maintenance, replication and repair, which in turn control cell division and differentiation. The roles of these proteins in disease are currently being investigated using microarray-based approaches. However, these assays can be difficult to adapt to routine diagnosis of complex diseases such as cancer. Here, we review promising alternative approaches involving protein-binding microarrays (PBMs) that probe the interaction of proteins from crude cell or tissue extracts with large collections of synthetic or natural DNA sequences. Recent studies have demonstrated the use of these novel PBM approaches to provide rapid and unbiased characterization of DNA-binding proteins as molecular markers of disease, for example cancer progression or infectious diseases.
Insights
Protein-binding microarrays (PBMs) offer a novel method for identifying DNA-binding proteins. These PBMs can serve as rapid, unbiased molecular markers for diagnosing diseases like cancer.
Area of Science:
- Molecular Biology
- Genomics
- Biotechnology
Background:
- DNA-binding proteins are crucial for fundamental cellular processes including gene regulation, DNA repair, and cell division.
- Investigating the role of DNA-binding proteins in diseases like cancer is vital for developing new diagnostic tools.
- Current microarray-based methods for studying these proteins face challenges in routine clinical diagnostics.
Purpose of the Study:
- To review alternative approaches to current microarray techniques for studying DNA-binding proteins.
- To highlight the potential of protein-binding microarrays (PBMs) as a diagnostic tool.
- To discuss the application of PBMs in identifying molecular markers for diseases.
Main Methods:
- Review of recent studies utilizing protein-binding microarrays (PBMs).
- PBMs probe interactions between proteins from cell/tissue extracts and extensive DNA sequence libraries.
- Analysis of PBMs for rapid and unbiased characterization of DNA-binding proteins.
Main Results:
- PBMs enable the study of DNA-binding protein interactions in complex biological samples.
- These novel PBM approaches offer a faster and more objective method compared to traditional assays.
- Demonstrated utility of PBMs in identifying disease-specific DNA-binding protein markers.
Conclusions:
- Protein-binding microarrays (PBMs) represent a promising advancement in the study of DNA-binding proteins.
- PBMs can serve as effective molecular markers for disease progression, including cancer and infectious diseases.
- This technology facilitates rapid and unbiased characterization, aiding in disease diagnosis and research.
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