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Updated: Feb 1, 2026

The ChIP-exo Method: Identifying Protein-DNA Interactions with Near Base Pair Precision

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Published on: December 23, 2016

The RNA Base-Pairing Problem and Base-Pairing Solutions.

Zhipeng Lu¹, Howard Y Chang¹

¹Center for Personal Dynamic Regulomes, Stanford University, Stanford, California 94305.

Cold Spring Harbor Perspectives in Biology

|December 5, 2018

Summary

This summary is machine-generated.

New cross-linking methods reveal RNA structures and interactions in living cells. These high-throughput techniques offer insights into the dynamic "modern RNA world" and its functional complexities.

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Area of Science:

Molecular Biology
Structural Biology
Genomics

Background:

RNA molecules fold into complex structures essential for diverse cellular functions.
Analyzing the structure and interactions of large, dynamic RNA molecules in vivo presents significant challenges.
Understanding RNA structure is fundamental to deciphering RNA biology.

Purpose of the Study:

To review advancements in RNA structure analysis, particularly methods based on the
cross-link, proximally ligate, and sequence
principle.
To highlight recent biological insights gained from these high-throughput techniques.
To discuss the potential of improved cross-linking methods for future RNA research.

Main Methods:

Focus on high-throughput methods for detecting base-pairing interactions in living cells.
Utilizes the
cross-link, proximally ligate, and sequence
principle.
Compares commonly used RNA structure determination methods and reviews historical psoralen cross-linking studies.

Main Results:

Recent studies using cross-linking methods have provided new biological insights into RNA structures and interactions.
High-throughput detection of base-pairing interactions in vivo is achievable.
Psoralen cross-linking has a historical significance in RNA structure studies.

Conclusions:

Cross-linking, proximity ligation, and sequencing methods are powerful tools for analyzing RNA structures and interactions in living cells.
Further refinement of these techniques will enable tackling previously intractable problems in RNA biology.
These methods offer a window into the functional mechanisms of the
modern RNA world
.