Transcription factor binding sites upstream of pseudogenes. (a) Distribution of pseudogenes with different numbers of TFBSs in their upstream sequences. Profiles from transcribed pseudogenes and non-transcribed pseudogenes are compared. Data are from the K562 cell line. (b) Number of pseudogenes with active promoters, active Pol2 binding sites or both in different cell lines.
Pei et al. Genome Biology 2012 13:R51 doi:10.1186/gb-2012-13-9-r51