highly significantP < 2.2 × 10 −16
We found a highly significant positive correlation of number of hits per target site with motif score (Spearman's correlation, ρ = 0.154; P < 2.2 × 10 −16 ) and weak positive correlation with palindrome score (Spearman's correlation, ρ = 0.029; P = 0.003).