NC number	Species	Genome size	Predicted proteins	Number of Orphans	% orphans in genome	Small Orphans	Large Orphans	Mean orphan size	Orphan Paralogues
NC_000907	Haemophilus influenzae Rd KW20	1.83	1657	12	0.7242	8	4	112.583	0
NC_000908	Mycoplasma genitalium G37	0.58	484	2	0.413223	2	0	117.5	0
NC_000911	Synechocystis sp. PCC 6803	3.95	3167	191	6.03094	96	95	191.366	8
NC_000909,NC_001732,NC_001733	Methanocaldococcus jannaschii DSM 2661	1.74	1786	204	11.4222	109	95	173.338	0
NC_000912	Mycoplasma pneumoniae M129	0.82	689	17	2.46734	9	8	182.824	15
NC_000915	Helicobacter pylori 26695	1.67	1576	77	4.88579	64	13	107.338	2
NC_000913	Escherichia coli K12	4.64	4237	19	0.44843	15	4	97.5263	0
NC_000916	Methanothermobacter thermautotrophicus str. Delta H	1.75	1873	231	12.3332	160	71	135.887	18
NC_000964	Bacillus subtilis subsp. subtilis str. 168	4.21	4105	280	6.82095	226	54	107.632	19
NC_000917	Archaeoglobus fulgidus DSM 4304	2.18	2420	349	14.4215	232	117	147.066	32
NC_001318	Borrelia burgdorferi B31	1.52	851	37	4.34783	36	1	53.4324	0
NC_000918	Aquifex aeolicus VF5	1.59	1529	123	8.04447	46	77	193.569	4
NC_000961	Pyrococcus horikoshii OT3	1.74	1955	153	7.82609	120	33	128.771	12
NC_000962	Mycobacterium tuberculosis H37Rv	4.41	3989	2	0.0501379	2	0	30	0
NC_000919	Treponema pallidum subsp. pallidum str. Nichols	1.14	1036	112	10.8108	83	29	125.812	11
NC_000117	Chlamydia trachomatis D/UW-3/CX	1.04	895	3	0.335196	3	0	52.3333	0
NC_000963	Rickettsia prowazekii str. Madrid E	1.11	835	10	1.1976	10	0	67.8	0
NC_000921	Helicobacter pylori J99	1.64	1491	34	2.28035	24	10	136.206	0
NC_000922	Chlamydophila pneumoniae CWL029	1.23	1052	1	0.095057	1	0	57	0
NC_000854	Aeropyrum pernix K1	1.67	1841	488	26.5073	287	201	169.906	4