Fig. 6
From: High-throughput detection of RNA processing in bacteria
Correlation between TSS occurring in the antiparallel orientation and a palindromic sequence motif. a TSS show a significant correlation with TSS in the opposite direction that are 18-bp upstream (black curve, n = -18). No statistically significant correlation was found between TSS having the same strand orientation (red curve). The correlation function defined as: C(n) = Sum[x(l)y(l + n)], l = 1..G-n, with G being the genome size, x(l) plus strand TSS counts, y(l) either minus strand TSS counts (black curve) or plus strand TSS counts (red curve). The maximum value of the correlation function was normalized to one for each curve. b A “TATNATA” motif occurs between antiparallel TSS. Of the 105 antiparallel TSS found that where 18-bp appart, 3 match the motif exactly, 27 have one mismatch, 25 have two mismatches and 13 have three mismatches