Table 2. Prediction results of essential genes in seven genomes.

Organism name	Essential gene number	Non-essential gene number	Sn	Sp	OA
Bacteroides thetaiotaomicron VPI-5482	325	4453	0.489	0.930	0.900
Burkholderia thailandensis E264	406	5226	0.623	0.907	0.887
Salmonella typhimurium SL1344	353	4093	0.790	0.929	0.918
Shewanella oneidensis MR-1	402	3663	0.689	0.960	0.933
Sphingomonas wittichii RW1	535	4344	0.385	0.946	0.884
Burkholderia pseudomallei K96243	505	5213	0.372	0.893	0.847
Bacteroides fragilis 638R	547	3703	0.395	0.950	0.879
Average			0.534	0.931	0.893

S_n, sensitivity; S_p, specificity; OA, overall accuracy.