Estrogen-related receptor β (ERRβ) - renaissance receptor or receptor renaissance?

Area of Science:

• Endocrinology
• Molecular Biology
• Genetics

Background:

• Estrogen-related receptors (ERRs) are orphan nuclear receptors (ONRs) within the nuclear receptor superfamily.
• While ERRα and ERRγ are well-studied for roles in metabolism and oncogenesis, ERRβ has received less attention.
• Cognate ligands for ERRs remain unidentified after 27 years of research.

Purpose of the Study:

• To provide a comprehensive overview of ERRβ biology.
• To highlight unique aspects of ERRβ compared to other ERRs.
• To focus on the role of alternative splicing in ERRβ structure and function.

Main Methods:

• Literature review of established and emerging knowledge on ERRβ.
• Comparative analysis of ERRβ across species (mouse, man, etc.).
• Focus on alternative splicing mechanisms and their functional consequences.

Main Results:

• ERRβ exhibits unique biological characteristics distinct from ERRα and ERRγ.
• Alternative splicing significantly impacts ERRβ's structure and functional repertoire.
• Emerging research is revealing novel functions of ERRβ.

Conclusions:

• ERRβ possesses unique properties that distinguish it within the ERR family.
• Alternative splicing is a key determinant of ERRβ's diverse functions.
• Further research into ERRβ is warranted to fully elucidate its biological roles.