Table 1.

Centrality measurements for the RNA targets in the protein-protein interaction network

	All	Experimental			Experimental and predicted
	mean	mean	Sim. mean	p-val	mean	Sim. mean	p-val
Deg	7.9	11	7.9	0.16	7.0	7.9	0.66
Bet	2.2e-03	4.2e-3	2.2e-3	0.098	2.2e-3	2.2e-3	0.44
Clo	0.28	0.3	0.28	0.022	0.27	0.28	0.59
CC	0.11	0.21	0.11	0.037	0.12	0.10	0.20
CPL	3.7	2.6	3.7	0.015	3.6	3.7	0.23
Den	6.5e-03	0.14	6.5e-3	0.019	0.063	6.2e-3	0.028
IDR	N/A	6.5e-3	3.4e-4	9.0e-3	5.8e-3	5.0e-4	0.011
I/T		28/65			85/240
		Experimental & extended			Exp & pred & both extended
Deg		Mean	Sim. mean	p-val	Mean	Sim. mean	p-val
Deg		9.3	7.9	0.28	7.4	7.9	0.62
Bet		3.4e-3	2.2e-3	0.14	2.0e-3	2.2e-3	0.57
Clo		0.29	0.28	0.051	0.27	0.28	0.87
CC		0.19	0.11	0.027	0.14	0.10	0.017
CPL		3.0	3.7	0.020	3.4	3.7	5.0e-3
Den		0.085	7.0e-3	0.015	0.14	5.8e-3	0.0
In-d		4.0e-3	5.5e-4	0.032	9.5e-2	7.9e-4	0.0
I/T		38/92			144/450

Those with significant values (p < 0.05) are indicated in boldface and those close to a p-value of 0.05 are underlined. The extended targets are targets located downstream of experimental or predicted sRNA targets in the same operon. Deg: Degree, Bet: Betweenness, Clo: Closeness, CC, Clustering coefficient, CPL: Characteristic path length Pat: Path length, Den: Density, IDR, In-degree ratio, I/T: sRNA in the network/total sRNA