Table 1. Normalized information content (specificity) of transcription factors in B. subtilis and E. coli with 7+ reported binding sites.

The left column in each species shows mean IC values computed after sampling 100 times taking only 30% of the available sites.

Bacillus subtilis
	#sites	normUIC	sampled_normUIC
ComK	120	0.72	0.75
PhoP	65	0.62	0.68
CcpA	48	0.84	0.88
MtrB	41	1.1	1.2
SpoIIID	39	0.69	0.86
Spo0A	38	0.64	0.8
TnrA	37	0.98	1.03
AbrB	34	0.52	0.78
CodY	34	0.66	0.9
DegU	37	0.94	0.91
GerE	31	0.71	0.88
Fur	26	0.85	0.95
PurR	24	0.78	1
SpoVT	16	1.4	1.4
DnaA	16	1.06	1.28
Hpr	14	0.75	1.21
PerR	13	0.81	1.25
ResD	12	0.85	1.25
GlnR	12	1.07	1.35
SnR	12	0.99	1.35
CssR	12	0.95	1.34
YlbO	12	0.89	1.39
AraR	11	0.91	1.28
RocR	11	1.22	1.35
CtsR	10	1.06	1.28
ComA	10	0.97	1.35
GlpP	10	1.2	1.35
LexA	10	0.94	1.38
Rok	10	1.34	1.34
CcpC	9	1.26	1.27
Fnr	8	1.26	1.38
YycF	8	1.2	1.32
CitT	8	0.91	1.27
PucR	7	0.83	1.28

Escherichia coli
	#sites	normUIC	sampled_normUIC
CRP	207	0.36	0.39
Fis	121	0.29	0.35
IHF	78	0.5	0.57
ArcA	77	0.48	0.57
NarL	76	0.71	0.78
FNR	75	0.56	0.63
Lrp	54	0.28	0.42
Fur	47	0.8	0.9
H-NS	34	0.45	0.64
CpxR	33	0.55	0.71
LexA	23	0.69	0.84
MetJ	23	1.04	1.16
OmpR	20	0.55	0.78
ArgR	18	0.66	0.88
SoxS	18	0.57	0.79
GlpR	18	0.55	0.8
PhoP	18	0.58	0.82
PhoB	17	0.54	0.81
TyrR	17	0.6	0.82
PurR	16	0.83	1.06
MarA	16	0.44	0.81
MalT	15	0.55	0.83
NarP	14	0.93	1.12
AraC	13	0.59	0.98
FruR	12	0.78	1.04
TrpR	10	1.03	1.14
Nac	10	0.66	1
CytR	10	0.51	0.85
NagC	10	0.68	0.97
GntR	10	0.71	0.99
FadR	10	0.7	0.98
IclR	10	1.02	1.25
OxyR	9	0.5	1.03
CysB	8	0.68	1.14
DnaA	8	0.71	1.12
IscR	8	0.62	1.09
Mlc	7	0.9	1.16
DeoR	7	0.73	1.15
GalR	7	0.83	1.15
GalS	7	0.93	1.21