Universal screening methods and applications of ThermoFluor

Area of Science:

• Genomics and Drug Discovery
• Protein Science
• Biochemistry

Background:

• The genomics revolution has produced numerous proteins with unknown functions, termed orphan proteins.
• Characterizing these proteins and identifying inhibitors of protein-protein interactions are crucial for drug discovery.
• Existing screening methods often require extensive prior knowledge of protein function and assay development.

Purpose of the Study:

• To review broadly applicable tools for functional characterization of orphan proteins.
• To describe methods for detecting inhibitors of protein-protein interactions and allosteric effectors.
• To present experiences with ThermoFluor technology for drug discovery.

Main Methods:

• ThermoFluor screening, which monitors ligand effects on temperature-dependent protein unfolding.
• Application of screening techniques for proteins with unknown functions.
• Review of tools relevant to drug discovery challenges.

Main Results:

• ThermoFluor can be applied to proteins of unknown function.
• The technology aided in characterizing an essential bacterial enzyme.
• It facilitated the discovery of inhibitors for a cancer-related protein-protein interaction.

Conclusions:

• Broadly applicable tools are essential for characterizing orphan proteins and identifying drug targets.
• ThermoFluor is a valuable screening technology for drug discovery, applicable even when protein function is unknown.
• This approach supports the discovery of novel drug leads for various therapeutic areas.