Table 1. All promoters examined in this study, categorized according to type of regulatory architecture.

Those promoters which have no recognizable RNAP site are labeled as inactive rather than constitutively expressed (0, 0).

Architecture	Total number of promoters	Number of promoters with at least one newly discovered binding site
All Architectures	113	48
(0,0)	34	0
(0,1)	26	21
(1,0)	11	10
(1,1)	4	3
(0,2)	4	4
(2,0)	3	2
(1,2)	4	3
(2,1)	2	2
(2,2)	1	1
(3,0)	3	1
(0,3)	2	1
(0,4)	1	0
inactive	18	0