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Rapid, solid-phase based automated analysis of chromatin structure and transcription factor occupancy in living

Richard Ingram1, Hiromi Tagoh, Arthur D Riggs

  • 1Molecular Medicine Unit, University of Leeds, St James's University Hospital Leeds LS9 7TF, UK.

Nucleic Acids Research
|January 13, 2005
PubMed

Insights

We developed a simple, automated ligation-mediated-PCR (LM-PCR) method using magnetic beads. This technique rapidly analyzes chromatin structure, nucleosome positioning, and transcription factor binding during cellular differentiation.

Area of Science:

  • Molecular Biology
  • Genomics
  • Epigenetics

Background:

  • Transcription factors, chromatin components, and modification activities are implicated in diseases like cancer.
  • Understanding how these factors alter cell-specific epigenotypes is challenging due to large regulatory regions in eukaryotic genes.

Purpose of the Study:

  • To develop an improved method for analyzing chromatin structure-function over large genomic regions.
  • To enable rapid examination of chromatin fine-structure, nucleosome positioning, and transcription factor binding site occupancy.

Main Methods:

  • Developed an automated, simple procedure using magnetic beads and capillary sequencing for ligation-mediated-PCR (LM-PCR).

Main Results:

  • The developed LM-PCR procedure allows for rapid analysis of chromatin fine-structure.
  • Demonstrated the method's utility in examining nucleosome positioning.
  • Showcased its application in tracking changes in transcription factor binding-site occupancy during cellular differentiation.

Conclusions:

  • The automated LM-PCR method provides a powerful tool for detailed chromatin analysis.
  • Facilitates understanding of epigenotype regulation in various cellular processes and disease states.

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