Detecting Long-Range Enhancer-Promoter Interactions by Quantitative Chromosome Conformation Capture

Area of Science:

• Genomics
• Molecular Biology
• Epigenetics

Background:

• Chromosome conformation capture (3C) and its derivatives are key methods for studying genome organization.
• 3C-based techniques have revealed insights into chromatin folding, including chromatin loops, topological domains (TADs), and inter-chromosomal interactions.

Purpose of the Study:

• To provide a detailed protocol for quantitative 3C analysis using real-time PCR.
• To offer essential quality control and normalization methods for accurate 3C measurements.

Main Methods:

• Quantitative 3C (3C-qPCR) protocol.
• Real-time PCR for analyzing genomic element contacts.
• Quality control and normalization strategies for 3C data.

Main Results:

• A standardized protocol for quantitative 3C analysis is presented.
• The protocol includes crucial steps for quality assessment and data normalization.
• This method facilitates the study of genome organization and chromatin folding.

Conclusions:

• The provided 3C-qPCR protocol enables quantitative measurement of genome organization.
• Accurate analysis of chromatin folding and interactions is achievable with the outlined quality controls and normalization.
• This methodology supports the expanding use of 3C in understanding genomic structure.