In junction: A novel mode of DNA recognition has been identified. A recent X-ray crystal-structure analysis provides a detailed view of how a synthetic [Fe2L3]4+ helicate binds to a DNA three-way junction by occupying its central hydrophobic cavity (see picture; space-filling model: [Fe2L3]4+ (gray C, blue N, orange Fe). Ribbon model: DNA (each of the three DNA strands are a different color: blue, red, or yellow)).
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Müller et al. (2006) studied this question.
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