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Published on: July 17, 2021
In cellulo DNA analysis (LMPCR footprinting)
Régen Drouin1, Nathalie Bastien, Jean-François Millau
1Department of Pediatrics, Faculty of Medicine and Health Sciences, Université de Sherbrooke, 3001, 12th Avenue North, Sherbrooke, QC, Canada J1H 5N4.
Methods in Molecular Biology (Clifton, N.J.)
|April 21, 2009
Summary
Ligation-mediated PCR (LMPCR) precisely analyzes DNA-protein interactions and chromatin structure in living cells. This genomic sequencing technique is crucial for understanding gene expression regulation in complex genomes.
Area of Science:
- Molecular Biology
- Genomics
- Epigenetics
Background:
- Understanding DNA-protein interactions and chromatin structure is key to gene expression regulation.
- Nuclease-hypersensitive sites and transcription factor binding sites often indicate genetic regulatory elements.
- Studying these interactions within intact cells provides the most relevant biological context.
Purpose of the Study:
- To present Ligation-mediated polymerase chain reaction (LMPCR) as a method for in cellulo analysis.
- To demonstrate the utility of LMPCR for studying DNA-protein interactions and unusual DNA structures.
- To detail conventional and automated LMPCR protocols for genomic studies.
Main Methods:
- Ligation-mediated polymerase chain reaction (LMPCR) is a genomic sequencing technique.
- LMPCR maps DNA single-strand breaks at single-nucleotide resolution.
- This method allows for precise analysis of DNA sequences within living cells.
Main Results:
- LMPCR enables direct demonstration of DNA-protein interactions in living cells.
- The technique can identify unusual DNA structures within the cellular environment.
- LMPCR is applicable to complex genomes, including human DNA.
Conclusions:
- LMPCR is the method of choice for in cellulo footprinting and DNA structure studies.
- This technique is vital for investigating gene expression regulation mechanisms.
- Detailed protocols are provided for both conventional and automated LMPCR.
