The distribution of conserved DNA motif blocks within the FA core complex gene promoters.

<p>(<b>A</b>) The 5′- region with a seemingly random distribution of three different sequence motifs. Each motif occurred no more than once per gene. (<b>B</b>) Within the region extending from −250 to −550, two sequence motifs (purple and green bars) are present repeatedly or combined in most of the tested FA genes. (<b>C</b>) The DNA sequences of the two motifs. The degree of nucleotide conservation is indicated by the height of the respective letters. The purple color represents the upper sequence, and the green color represents the lower sequence.