Phase separation of low-complexity domains in cellular function and disease.

Area of Science:

• Biochemistry
• Cell Biology
• Molecular Biology

Background:

• Low-complexity (LC) domains are abundant in eukaryotic proteomes.
• Historically, LC sequences were thought to lack molecular structure.
• Recent studies reveal their crucial role in cellular organization.

Purpose of the Study:

• To review the role of LC domain phase separation in cellular organization.
• To explore the link between LC protein phase separation and human diseases.
• To discuss potential therapeutic strategies targeting phase separation.

Main Methods:

• Literature review of recent studies on LC domains and phase separation.
• Analysis of evidence linking protein phase separation to biological function.
• Examination of pathogenic LC proteins and their disease mechanisms.

Main Results:

• Phase separation of LC domains is a fundamental mechanism for cellular organization.
• Dynamic phase separation is critical for biological validity and function.
• Pathogenic LC proteins disrupt phase separation, leading to diseases like cancer and neurodegeneration.

Conclusions:

• Understanding LC domain phase separation is key to cellular organization.
• Dysregulation of phase separation by pathogenic proteins causes disease.
• Further research may yield therapeutic interventions for related human diseases.