Table 3.

Overlap of inverted repeats and H palindromes with coding sequences

Species	IR		HP
	Overlap	P	Overlap	P
Human (4.2%)	9/426	0.01	0/627	≈10−9
Yeast (68%)	61/164	<10−9	31/102	<10−9
E. coli (87%)	125/254	<10−9	4/4	0.22

The overlap of published peptide and RNA sequences and different repeats was scored if any base in a coding sequence was also shared by at least one inverted repeat or H palindrome (IR and HP, respectively). Overlap lists the number of overlaps compared to the total number examined. P is the computed proportion test with the sample size in excess of 25 in all cases shown.