Fig. 3From: An affinity-structure database of helix-turn-helix: DNA complexes with a universal coordinate systemStatistical distribution of HTH structural properties. All histograms show distribution over HTH domains in our database. a Histogram of mean distances of 5 closest residues of recognition helix to DNA. b Histogram of all distances of five closest residues of recognition helix to DNA. c Histograms of distances between central residue of recognition helix (see text for description) and residues in closest and 2nd closest α-helices. d Histogram of residue distances along protein chain from central residue to recognition helix endBack to article page