TABLE 3.

Differences in gene expression among the core genome in S. flexneri archetype strains^a

Gene categories	Gene expression pattern
	Upregulated	Downregulated
Strain-specific
2457T	177	160
CCH060	30	74
J17B	52	15
Shared by two strains
2457T and J17B	8	1
2457T and CCH060	40	25
J17B and CCH060	4	1
Shared by three strains
2457T, CCH060, J17B	2	0

^a All genes compared within this analysis are from the core genome as indicated by LS-BSR (52, 62). Gene categories are based on variation or similarity within DE patterns of core genome genes with a minimum of 2 log fold change (LFC).