New Approach for Targeting Small-Molecule Candidates for Intrinsically Disordered Proteins

Area of Science:

• Biochemistry
• Computational Biology
• Neuroscience

Background:

• Intrinsically disordered proteins (IDPs) like tau present significant challenges for traditional drug discovery methods.
• Tau protein is closely associated with Alzheimer's disease pathology.

Purpose of the Study:

• To apply the Informational Spectrum Method for Small Molecules (ISM-SM) to identify potential modulators of tau protein.
• To screen large compound databases for molecules that may interact with tau.

Main Methods:

• Utilized the Informational Spectrum Method for Small Molecules (ISM-SM), a computational technique based on electron-ion interaction potentials (EIIPs).
• Screened the DrugBank database and the COCONUT natural product database using characteristic interaction frequencies from known tau ligands and conserved mammalian tau sequences.

Main Results:

• Identified approved drugs with known indirect links to Alzheimer's disease pathways or tau pathology.
• Discovered natural products, including Bryostatin-14, which is known to affect kinases involved in tau phosphorylation.

Conclusions:

• The ISM-SM is a viable in silico tool for identifying potential small molecule modulators of tau protein.
• This approach can uncover repurposed drugs and natural products relevant to tau function and Alzheimer's disease.
• ISM-SM complements existing strategies for drug discovery targeting intrinsically disordered proteins.