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Developmental mechanisms and cis-regulatory codes.

Amanda Ochoa-Espinosa1, Stephen Small

  • 1New York University, 100 Washington Square East, New York, NY 10003, USA.

Current Opinion in Genetics & Development
|March 1, 2006
PubMed
Summary
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Complex gene networks guide animal development through cis-regulatory modules (CRMs). These modules control gene expression, and studies reveal shared sequence and binding site features for CRMs regulating co-expressed genes and specific developmental events.

Area of Science:

  • Developmental Biology
  • Genomics
  • Bioinformatics

Background:

  • Animal development relies on complex transcriptional regulatory networks.
  • These networks orchestrate gene expression from early embryonic patterning to cell differentiation.
  • Cis-regulatory modules (CRMs) are key components, controlling gene expression spatially and temporally.

Purpose of the Study:

  • To decipher the 'cis-regulatory codes' governing CRMs in developmental processes.
  • To identify sequence characteristics and binding site architectures of CRMs.
  • To link CRM features to their specific functions in gene regulation.

Main Methods:

  • In silico approaches to analyze CRM sequences.
  • Comparative analysis of CRMs from various model systems.

Related Experiment Videos

  • Identification of sequence motifs and binding site patterns.

    • Main Results:

    • CRMs regulating co-expressed genes share identifiable sequence characteristics.
    • CRMs associated with specific developmental events exhibit common binding site architectures.
    • These architectural features are functionally linked to CRM roles.

    Conclusions:

    • The 'cis-regulatory code' is being elucidated through sequence and architecture analysis.
    • CRMs possess predictable features based on the genes they regulate and the developmental events they control.
    • Understanding CRM codes advances knowledge of developmental gene regulation.