4.8 Article

A designed DNA binding motif that recognizes extended sites and spans two adjacent major grooves

Journal

CHEMICAL SCIENCE
Volume 7, Issue 5, Pages 3298-3303

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c6sc00045b

Keywords

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Funding

  1. Spanish grants [SAF2013-41943-R, CTQ2013-43264-R, CTQ2013-49317-EXP]
  2. Xunta de Galicia [GRC2013-041]
  3. ERDF
  4. European Research Council [340055]
  5. COST Action [CM1105]
  6. COST [CM1306]
  7. orfeo-cinqa network
  8. Xunta de Galicia

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We report the rational design of a DNA-binding peptide construct composed of the DNA-contacting regions of two transcription factors (GCN4 and GAGA) linked through an AT-hook DNA anchor. The resulting chimera, which represents a new, non-natural DNA binding motif, binds with high affinity and selectivity to a long composite sequence of 13 base pairs (TCAT-AATT-GAGAG).

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