Table 1. Single nucleotide polymorphisms unique to strains in the 2006/2008 clade.

STM_MAL	STM	Description	LT2	D23580+19 other strains	2006/2008 strains	Amino acid	gene
4573	179	xylanase/chitin deacetylase	G	G	A	Trp→stop	yadE
39	285	inner membrane protein	G	G	A	Ala→Thr	-
624	762	fumarate hydratase	G	G	T	Leu→Ile	-
756	935	pyruvate dehydrogenase	C	T	C	His→Arg	poxB
1383	1578	nitrate reductase 2 beta subunit	C	C	T	Arg→Cys	narY
1403	1598	regulatory protein	G	A	G	No change	-
2016	2150	outer membrane protein	A	A	T	Asn→Lys	yehB
2136	2277	ribonucleotide-diphosphate reductase subunit alpha	T	T	C	Val→Ala	nrdA
2170	2312	hypothetical protein	C	T	C	Ile→Val	-
		intergenic space or other non-protein-coding region	G	A	G	-	-
		intergenic space or other non-protein-coding region	T	T	A	-	-
2847	3046	hemolysin	T	T	C	No change	yqfA
2865	3066	arginine exporter protein	C	T	C	Glu→Gly	yggA
		intergenic space or other non-protein-coding region	A	A	G	-	-
3337	3509	carboxylesterase BioH	A	A	C	Trp→Gly	bioH
3719	3899	ATP-dependent protease	G	G	A	Val→Ala	yifB
4596	202	glutamate-1-semialdehyde aminotransferase	T	T	C	Asn→Ser	hemI

Single nucleotide polymorphisms relative to S. Typhimurium strains LT2 and D23580, distinguishing the seven strains of the 2006/2008 lineage from the large cluster of MDR strains (19) and the corresponding amino acid changes. STM and STM_Mal are systematic identification for coding sequences in LT2 and D23580.

Trp – tryptophan, Gln – glutamine, Arg – arginine, Ala – alanine, Thr – threonine, Leu – leucine, Ile – isoleucine, His – histidine, Cys – cysteine, Asn – asparagine, Gly – glycine.