The sequence specificity of homeodomain-DNA interaction.

  title={The sequence specificity of homeodomain-DNA interaction.},
  author={Claude Desplan and James W. Theis and Patrick H O'Farrell},
  volume={54 7},
The Drosophila developmental gene, engrailed, encodes a sequence-specific DNA binding activity. Using deletion constructs expressed as fusion proteins in E. coli, we localized this activity to the conserved homeodomain (HD). The binding site consensus, TCAATTAAAT, is found in clusters in the engrailed regulatory region. Weak binding of the En HD to one copy of a synthetic consensus is enhanced by adjacent copies. The distantly related HD encoded by fushi tarazu binds to the same sites as the En… CONTINUE READING
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