Distribution of HNF4α binding sites in Alu repeats. Frequency histogram showing the position of HNF4α binding sites in AluY, AluS, and AluJ families of SINEs as well as the precursors FLAM and FRAM. The approximate age of the repeats is indicated. The slight variation in peaks at positions 31, 62 and 200 are due to small differences in the length of the Alu repeats.
Bolotin et al. BMC Genomics 2011 12:560 doi:10.1186/1471-2164-12-560