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A comparative genomics approach to identifying the plasticity transcriptome.

Andreas R Pfenning1, Russell Schwartz, Alison L Barth

  • 1Department of Computer Science, Carnegie Mellon University, Pittsburgh, PA 15213, USA. andreas.pfenning@duke.edu <andreas.pfenning@duke.edu>

BMC Neuroscience
|March 16, 2007
PubMed
Summary
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Researchers identified common gene targets regulated by CREB and zif268 transcription factors, crucial for neural activity and plasticity. This discovery aids understanding of neuronal function and gene regulation in the brain.

Area of Science:

  • Neuroscience
  • Genomics
  • Computational Biology

Background:

  • Neuronal activity influences gene expression, impacting learning, memory, and neurological disorders like epilepsy.
  • CREB and zif268 are key transcription factors mediating genomic responses to neuronal activity and plasticity.
  • Identifying their gene targets is crucial for understanding neural activity-gene expression coupling.

Purpose of the Study:

  • To computationally identify binding sites for CREB and zif268 in mammalian genomes.
  • To define candidate genes regulated by these transcription factors and neural activity.

Main Methods:

  • Developed a computational approach to find transcription factor binding sites in promoter regions.
  • Utilized a search algorithm, cross-species comparison, and analysis of binding site locations.

Related Experiment Videos

  • Identified genes targeted by CREB or zif268 across mouse, rat, and human genomes.

    • Main Results:

    • Identified a set of candidate genes strongly targeted by CREB or zif268.
    • Found that CREB and zif268 share a significant number of common gene targets.
    • Observed that these shared targets are predominantly other transcription factors.

    Conclusions:

    • The findings enhance understanding of regulatory networks driven by neural activity.
    • Identified genes contribute to the plasticity transcriptome, underlying activity-dependent neuronal changes.
    • This resource aids research into gene functions related to neuronal plasticity.