High-throughput NMR-based screening with competition binding experiments.

Area of Science:

• Biochemistry
• Chemical Biology
• Structural Biology

Background:

• Ligand-based NMR screening struggles with high-affinity and covalently binding molecules.
• Limited detection range restricts the diversity of compounds screened via NMR.

Purpose of the Study:

• To develop a novel NMR spectroscopy approach for high-throughput screening.
• To overcome limitations of existing NMR screening methods for ligand and molecule detection.
• To expand the range of compounds amenable to NMR screening, including those with low solubility.

Main Methods:

• Utilizes transverse and/or selective longitudinal relaxation parameters.
• Incorporates competition binding experiments.
• Derives mathematical expressions for experiment setup and binding constant approximation.

Main Results:

• Successfully developed a novel NMR screening methodology.
• Overcomes limitations in detecting high-affinity and covalently binding ligands.
• Enables detection of marginally soluble compounds, increasing screened compound diversity.
• Allows for rapid screening of thousands of compounds against biological targets.
• Demonstrates applicability to screening plant and fungi extracts.

Conclusions:

• The novel NMR screening method significantly advances high-throughput screening capabilities.
• This technique broadens the scope of NMR-based drug discovery and natural product screening.
• The approach offers a more comprehensive and efficient platform for identifying novel ligands and bioactive compounds.