RNA folding in living cells

Area of Science:

• Molecular Biology
• Biochemistry
• Genetics

Background:

• RNA folding is fundamental to RNA function, with in vitro studies yielding significant insights.
• Investigating intracellular RNA structure formation (in vivo) remains challenging due to the complex cellular environment.
• Cellular factors like transcription, translation, proteins, RNAs, and metabolites can significantly influence RNA folding.

Purpose of the Study:

• To summarize current research efforts focused on understanding RNA folding within living cells.
• To highlight the key differences and challenges in studying RNA folding in vitro versus in vivo.
• To review the diverse cellular components that modulate intracellular RNA structure.

Main Methods:

• This work is a review, synthesizing existing literature on in vivo RNA folding.
• It discusses experimental and theoretical approaches used to study RNA structure in cellular contexts.
• Analysis of factors influencing RNA folding, including co-transcriptional and co-translational processes.

Main Results:

• The cellular environment presents unique challenges and opportunities for RNA folding compared to in vitro conditions.
• Transcription and translation dynamics play a critical role in shaping RNA folding landscapes.
• Trans-acting factors (proteins, other RNAs, metabolites) are key modulators of RNA structure and function in vivo.

Conclusions:

• Unraveling the rules of intracellular RNA folding is essential for understanding RNA biology.
• Future research should focus on integrating multiple cellular factors to predict in vivo RNA structures.
• Advances in this field will impact our understanding of gene regulation and RNA-based therapeutics.