Alu-contained DNA binding motifs within housekeeping and tissue-specific genes.

The presence of Alu-contained DNA motifs was compared between housekeeping genes and tissue specific genes. The motifs presented here contained significantly different counts between housekeeping genes and tissue-specific genes using a chi-square test. Proportions were then compared within each category denoted in the table header. Motifs counts were tabulated for Antisense (ASO), Sense (SO), the first linear, 2nd, decile (5′), and the last linear, 9th, decile (3′). Since methylated cytosines have a higher rate of mutation than non-methylated CpGs and methylation may be different within genes and intergenically, CpG proportions were also included in the table even though they did not pass significance (*NS).