CCAAT motif reduces tendency towards variable expression. For each promoter class in Figure 6, genes were categorized based on the presence or absence of CCAAT within 250 nt of the translation start site. Shown are the percentage of total P. infestans genes that exhibit >2-fold increases or decreases in mRNA levels between hyphae and sporangia based on microarray analysis.
Roy et al. BMC Genomics 2013 14:106 doi:10.1186/1471-2164-14-106