Fig. 1

Putative regulatory motifs in Ph4h3. The 790 bp consensus Ph4h3 with the putative motif positioning shown and motif 5′–3′ directionality indicated by an arrow. The promoter length and the translational start site (ATG/CAT) at each promoter end are shown. The distribution of motifs is to scale, while motif lengths are not. The motif sequence found in the consensus Ph4h3 are listed in Additional file 3, and the sequence conservation of each motif is shown in the Logo-plot in Additional file 2: Figure S2. Note; the two CreA sites positioned downstream of the Spt10 site have four and three overlapping nucleotides, respectively. The two pairs of HAP3/HAP5 sites (15 nt per site) have 10 overlapping nucleotides, incl. the core CCAAT motif. The two outer most Spt10 motifs are 51 and 58 nt upstream of the respective promoter end