Table 1.

Individual PSA-producing bacteria were compared with their closest non-PSA-producer relative for IL-10 and Treg induction in PBMC and LPMC. Statistical significance was calculated by paired T tests and the p-values for each comparison are noted in the table The 16S rRNA percent identity between pairs was calculated based on aligned sequenced in Arb (Kumar et al. 2005).

PSA-producer	Closest non PSA-producer	16S rRNA % Identity	PBMC IL-10	PBMC Tregs	LPMC IL-10	LPMC Tregs
Bacteroides fragilis	Bacteroides ovatus	94	0.007	0.041	0.304	0.025
Bacteroides cellulosilyticus	Bacteroides intestinalis	97.4	0.003	0.047	0.002	0.028
Bacteroides uniformis	Bacteroides stercoris	91.1	0.063	0.009	0.619	0.260
Bacteroides fluxus	Bacteroides stercoris	93	0.015	0.034	0.184	0.495
Parabacteroides distasonis	Prevotella stercorea	84.4	0.002	0.089	0.611	0.339
Clostridium spiroforme	Catenibacterium mitsuoki	92.1	<0.0001	0.003	0.002	0.225