||Budding yeast Saccharomyces cerevisiae
||Kristiansson E, Thorsen M, Tamás MJ, Nerman O. Evolutionary forces act on promoter length: identification of enriched cis-regulatory elements. Mol Biol Evol. 2009 Jun26(6):1299-307 p.1301 left column 4th paragraphPubMed ID19258451
||Sequence Data and Analysis, Transcription Factor Binding Site Data and Phylogenetic Filtering, Three Tests for Enrichment of Transcription Factor Binding Sites
||"The simplest definition of a gene's putative promoter region is the DNA sequence located 5' of the corresponding ORF and stretching to the upstream ORF. Extracting promoter regions for all genes according to this definition revealed the median length of all promoters in the S. cerevisiae genome is 455 bp and that the length of promoters varies greatly (fig. 1)."