N₃ -Kethoxal-Based Bioorthogonal Intracellular RNA Labeling

Area of Science:

• Biochemistry
• Molecular Biology
• Chemical Biology

Background:

• Growing interest exists in developing tools for intracellular RNA manipulation.
• Current methods for RNA labeling within living cells face limitations.
• Bioorthogonal chemistry offers precise molecular labeling strategies.

Purpose of the Study:

• To establish a novel bioorthogonal strategy for functionalizing intracellular RNA.
• To enable the modification of RNA directly within living cells.
• To introduce fluorescent or phenol tags onto RNA molecules in situ.

Main Methods:

• Utilized N3-kethoxal (N3K) for bioorthogonal labeling of RNA.
• Performed an in vivo click reaction with DBCO derivatives.
• Applied the strategy for intracellular RNA modification.

Main Results:

• Successfully demonstrated N3K-based bioorthogonal intracellular RNA functionalization.
• Achieved RNA modification with fluorescent and phenol groups within cells.
• Validated the efficacy of the in vivo click reaction for RNA tagging.

Conclusions:

• The N3K-based strategy provides a new and effective method for intracellular RNA labeling.
• This approach expands the toolkit for studying RNA in biological systems.
• Offers potential for advanced RNA imaging and functional studies within live cells.