Genome-wide analysis of long noncoding RNA turnover

Area of Science:

• RNA biology
• Molecular biology
• Genomics

Background:

• Nuclear noncoding RNAs (ncRNAs) play crucial roles in gene regulation.
• Understanding ncRNA turnover (stability) is essential for deciphering their functions.
• Existing methods may not fully capture RNA stability under physiological conditions.

Purpose of the Study:

• To provide a detailed protocol for the BRIC-seq technique.
• To enable accurate measurement of nuclear ncRNA half-life.
• To offer technical insights for optimizing BRIC-seq experiments.

Main Methods:

• Utilizes pulse labeling of cellular RNA with 5 -bromo-uridine (BrU).
• Employs immunoprecipitation to isolate BrU-labeled RNA.
• Combines deep sequencing with a chase assay to track RNA decay over time.
• The method is termed BRIC-seq (BrU immunoprecipitation chase assay through deep sequencing).

Main Results:

• The protocol facilitates genome-wide determination of RNA turnover.
• It allows for the assessment of nuclear ncRNA stability under undisturbed physiological conditions.
• Technical tips are provided to enhance the reliability and efficiency of the method.

Conclusions:

• BRIC-seq is a powerful technique for studying nuclear ncRNA stability.
• This protocol enables researchers to investigate RNA dynamics in mammalian cells.
• The method contributes to a deeper understanding of RNA biology and gene regulation.