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. 2002 Sep 15;30(18):3936–3944. doi: 10.1093/nar/gkf518

Figure 1.

Figure 1

Superimposition of two 12 bp B-DNA molecules on the ocr dimer adapted from Walkinshaw et al. (1). Ocr is shown in blue ribbon form with N- and C-termini indicated and the dimer interface shown as a red line. A fit of phosphate groups of a B-DNA complex (1,42) onto 11 carboxyl groups of ocr gave an r.m.s. fit of 1.9 Å. Phosphate groups are coloured yellow (phosphorus) and purple (oxygen). The carboxyl groups are coloured red (oxygen) and black (carbon). The sugar backbones of the DNA chains are coloured in two shades of green with the base pairs omitted for clarity. Vectors for the DNA helical axes are drawn as black lines.