Scientists have developed a new technique for mapping the interactions between RNA and chromatin in the genome. This technique, called ChIRP-nexus (Chromatin Isolation by RNA Purification followed by Nexus analysis), provides a comprehensive view of how RNA molecules interact with DNA and proteins within the nucleus.

The researchers used ChIRP-nexus to study the interactions between RNA and chromatin in human cells. They found that RNA molecules interact with a wide range of chromatin regions, including gene promoters, enhancers, and silencers. These interactions play a critical role in gene regulation, as they can control the accessibility of DNA to transcription factors and other proteins.

"Our method is an extremely sensitive and versatile platform for the global analysis of RNA-chromatin interactions," said senior author Dr. Chuan He of the University of Chicago. "It can identify RNA-binding proteins in a genome-wide and unbiased manner, and the results can be applied to better understand the mechanisms of gene regulation and develop new therapeutic strategies for various diseases."

ChIRP-nexus is a powerful new tool that will help scientists better understand how RNA molecules interact with chromatin in the genome. This information will be essential for understanding gene regulation and developing new therapeutic strategies for a wide range of diseases.