Targeting protein self-association in drug design

Area of Science:

• Biochemistry
• Drug Design
• Molecular Biology

Background:

• Protein self-association is fundamental for cellular stability and molecular recognition.
• Constitutive homomers represent an emerging target class in therapeutic development.
• Disrupting these homomeric interactions presents a novel strategy in drug design.

Purpose of the Study:

• To review the emerging paradigm of targeting protein self-association for drug design.
• To highlight the advantages of inhibiting homomeric proteins over active site inhibition.
• To discuss the biophysical and biochemical tools enabling this new therapeutic approach.

Main Methods:

• Review of current literature on protein self-association and drug design.
• Analysis of therapeutic strategies targeting homomeric proteins.
• Discussion of biophysical and biochemical assay development for studying protein interactions.

Main Results:

• Inhibiting homomeric proteins can be achieved via direct complex disruption, subunit intercalation, or promoting inactive states.
• Advantages include stimulated protein degradation, enhanced selectivity, substoichiometric inhibition, and bypassing compensatory mechanisms.
• Advancements in techniques like differential scanning fluorimetry (DSF), native mass spectrometry (MS), and X-ray crystallography facilitate the study of homomeric proteins.

Conclusions:

• Targeting protein self-interaction is a promising and advantageous strategy in modern drug discovery.
• The development of specialized biophysical and biochemical tools is crucial for advancing this field.
• This review provides insights into the potential of homomeric protein inhibition for novel therapeutics.