From: An analysis of the positional distribution of DNA motifs in promoter regions and its biological relevance
Species
Database
Seq. number
Average bp
Reference
Homo sapiens
EPD
1871
600
[24]
Drosophila melanogaster
DCPD
205
92
[25]
Saccharomyces cerevisiae
YEASTRACT
5864
1000
[23]
Escherichia coli
RegulonDB
1103
80
[26]
Dicots
PlantProm
220
251
[27]
