Therapeutic Interventions of Cancers Using Intrinsically Disordered Proteins as Drug Targets: c-Myc as Model System

Area of Science:

• Biochemistry
• Molecular Biology
• Oncology

Background:

• Protein intrinsic disorder is key to understanding regulatory proteins.
• Approximately 75% of mammalian signaling proteins possess long disordered regions (>30 amino acids).
• Intrinsically disordered proteins (IDPs) are linked to human diseases and represent potential drug targets.

Purpose of the Study:

• To review the current understanding of c-Myc's disordered domains.
• To highlight the role of intrinsic disorder in the multifunctional capabilities of hub proteins like c-Myc.
• To explore c-Myc as a therapeutic target for cancers and cancer stem cells.

Main Methods:

• Literature review focusing on intrinsically disordered proteins (IDPs).
• Analysis of the reductionist approach dividing c-Myc into structured and disordered domains.
• Synthesis of existing data on c-Myc's structured domains and emerging insights into its disordered regions.

Main Results:

• IDPs offer significant flexibility for protein-partner binding.
• Disordered domains of c-Myc are crucial for its function but are less understood than structured domains.
• c-Myc's disordered nature contributes to its role as a key oncoprotein.

Conclusions:

• Understanding the disordered aspects of c-Myc is essential for developing novel cancer therapeutics.
• The inherent flexibility of disordered domains in proteins like c-Myc is critical for their regulatory roles.
• Further research into c-Myc's disordered domains holds promise for targeted cancer treatments.