A systematic view on E3 ligase Ring TRIMmers with a focus on cardiac function and disease

Area of Science:

• Biochemistry and Molecular Biology
• Cardiovascular Research
• Cellular Biology

Background:

• Ubiquitination is a crucial post-translational modification regulating protein homeostasis via the ubiquitin-proteasome system.
• E3 ubiquitin ligases, including Tripartite Motif-containing (TRIM) proteins, are key players in this process.
• Muscle RING Finger proteins (MuRFs) are well-known TRIMs involved in cardiac function.

Purpose of the Study:

• To review known cardiac E3 ligases and their protein targets.
• To discuss the role of TRIM E3 ligases in cardiac proteostasis and pathophysiology.
• To explore potential therapeutic implications of cardiac TRIM E3 ligases.

Main Methods:

• Literature review and analysis of recent research advances.
• Summarization of established knowledge on cardiac E3 ligases.
• Focus on the specific roles of TRIM E3 ligases in the heart.

Main Results:

• Identified a growing number of TRIM E3 ligases involved in cardiac pathophysiology beyond MuRFs.
• Detailed known cardiac E3 ligases and their specific targets.
• Highlighted the importance of these ligases in maintaining cardiac protein homeostasis.

Conclusions:

• TRIM E3 ligases play a significant and expanding role in cardiac health and disease.
• Understanding these ligases offers potential avenues for novel cardiac therapies.
• Further research into cardiac TRIM E3 ligases is warranted for therapeutic development.