TABLE 7.

General characteristics of bifidobacterial genomes

Parameter	Value
	B. adolescentis ATCC 15703	B. longum subsp. longum		B. longum subsp. infantis ATCC 15697	B. dentium Bd1	B. animalis subsp. lactis
		DJO10A	NCC2705			AD011	Bl-04	DSM 10140	Bb-12
Length (bp)	2,089,645	2,375,792	2,256,640	2,832,748	2,636,367	1,933,695	1,938,709	1,938,483	1,942,198
Overall G+C content (%)	59.18	60.15	60.12	59.86	58.94	60.49	60.48	60.48	60.48
No. of plasmids	0	2	1	0	0	0	0	0	0
No. of annotated genes	1,631	1,990	1,727	2,416	2,129	1,528	1,567	1,566	1,642
Avg gene length (bp)	1,109	1,031	1,115	997	1,066	1,070	1,064	1,062	1,063
Gene density (no. of genes/kb)	0.780	0.838	0.765	0.852	0.807	0.790	0.808	0.807	0.845
Gene coding content (%)	86.5	86.4	85.3	85.1	86.1	84.6	86.0	85.8	89.9
Gene G+C content (%)	60.08	61.13	60.86	60.70	59.32	61.47	61.40	61.40	61.11
No. of rRNA gene operons	5	4	4	4	4 (+ 1 5S rRNA gene)	2 (+ 1 5S rRNA gene)	4	4	4
No. of prophage-like elements	0	1	1 (remnant)	4	1 complete + 1 remnant	1 (remnant)	1 (remnant)	1 (remnant)	1 (remnant)
No. of tRNAs	54	58	57	79	55	52	52	52	52
No. of tRNA synthetases	20	20	21	19	19	21	19	19	19
No. of MICs	0	4	3	0	0	0	0	0	0
No. of CRISPRs	1 (86 repeats)	1 (43 repeats)	0	0	2 (17 and 81 repeats)	1 (20 repeats)	1 (22 repeats)	1 (20 repeats)	1 (20 repeats)
No. of oligonucleotide clustersa	10	11	7	11	10	7	7	7	7
No. of polyol clustersb	1	1	0	0	1	0	0	0	0

^aNumber of predicted oligosaccharide and other complex carbohydrate utilization gene clusters.

^bNumber of predicted polyol utilization gene clusters.