Distributions of TTCTTC in A. thaliana promoters aligned relative to the TSS. TTCTTC is one of the 29 conserved TC[-39,-26]-PLMs. Distributions are shown for the whole promoter set containing 14927 promoters (A) and for the 1745 TA-less promoters (B). The y-axis percentage depends on the promoter number in each data set. TTCTTC is preferentially positioned at +29 (SMS 10) and -33 (SMS 8) in the whole promoter set and in the TA-less promoter set respectively. In both cases, the size of the window used to scan the promoters was 2 bases.
Bernard et al. BMC Genomics 2010 11:166 doi:10.1186/1471-2164-11-166