Tight associations between transcription promoter type and epigenetic variation in histone positioning and modification
2011

Transcription Promoter Types and Histone Modification

Sample size: 10971 publication Evidence: high

Author Information

Author(s): Nozaki Tadasu, Yachie Nozomu, Ogawa Ryu, Kratz Anton, Saito Rintaro, Tomita Masaru

Primary Institution: Keio University

Hypothesis

There is an association between histone modifications and the architecture of transcription promoters.

Conclusion

Broad promoters are associated with higher gene expression levels and more stable nucleosome positioning compared to peak promoters.

Supporting Evidence

  • Broad promoters have more stable nucleosome positioning than peak promoters.
  • Histone modifications are more prevalent around broad promoters.
  • Gene expression levels are higher for genes associated with broad promoters that have modified histones.

Takeaway

This study found that some parts of our DNA, called broad promoters, help genes work better when they have special markers on them, while other parts, called peak promoters, don't have the same effect.

Methodology

The study used systematic analysis of transcription promoters and gene expression, along with epigenetic histone behaviors.

Participant Demographics

Human CD4+ T-cells

Statistical Information

P-Value

p<9.1 × 10-11

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1471-2164-12-416

Want to read the original?

Access the complete publication on the publisher's website

View Original Publication