Transcription factors 'recognize' relatively short DNA consensus sequences; their full specificity must depend on a broader set of protein-protein and protein-DNA interactions. Joshi et al. show that, in addition to forming base pair–specific hydrogen bonds in the DNA major groove, certain Hox proteins detect DNA shape in the minor groove.
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Harrison, S. Three-dimensional intricacies in protein-DNA recognition and transcriptional control. Nat Struct Mol Biol 14, 1118–1119 (2007). https://doi.org/10.1038/nsmb1207-1118
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DOI: https://doi.org/10.1038/nsmb1207-1118