Fluorescent Investigation of Proteins Using DNA-Synthetic Ligand Conjugates

Area of Science:

• Biochemistry and Molecular Biology
• Biotechnology
• Analytical Chemistry

Background:

• Fluorescence detection is crucial in life sciences for protein analysis.
• There's a need for simple, modular, and versatile fluorescent tools for protein studies.
• Oligodeoxynucleotides (ODNs) offer advantages for scaffolding fluorescent probes.

Purpose of the Study:

• To review the progress in developing DNA-based fluorescent sensors and labels for protein targets.
• To highlight the versatility and modularity of using ODNs for creating protein-specific fluorescent tools.
• To showcase applications including protein modification, labeling, imaging, and biomarker detection.

Main Methods:

• Utilizing oligodeoxynucleotides (ODNs) as scaffolds for fluorescent probes.
• Designing DNA probes with controlled valency and positioning of protein binders and fluorescent dyes.
• Employing small-molecule (SM) or peptide ligands for target navigation of DNA probes.

Main Results:

• DNA probes offer predictable molecular architectures due to self-assembly, solubility, and stability.
• ODN-based systems provide tight control over probe design and functionality.
• Demonstrated ability to create versatile tools for diverse protein-related applications.

Conclusions:

• DNA probes are highly adaptable for developing advanced fluorescent sensors and labels.
• ODN-SM and ODN-peptide conjugates are effective for protein modification, imaging, and biomarker detection.
• This approach offers significant potential for protein surface characterization and multivalency studies.