TABLE 2.

Characteristic SNPs of three groups of outbreak-related isolates

Group of isolates	Amino acid change	Codon change	Position CDSa	Type of SNP	Gene	Locus →tag	Strand	Product name
All outbreak	C→R	TGT→CGT	625	Genic	cobT	SMA01→2283	−	Nicotinate-nucleotide–dimethylbenzimidazole phosphoribosyltransferase
	N→N	AAT→AAC	156	Genic	gntR	SMA01→3706	−	Gluconate utilization system Gnt-transcriptional repressor
	A→T	GCC→ACC	577	Genic	ansB	SMA01→3765	−	l-Asparaginase
	V→A	GTC→GCC	988	Genic	dcuC	SMA01→4465	−	Putative cryptic C4-dicarboxylate transporter
				Intergenic
	K→E	AAA→GAA	70	Genic	betI	SMA01→1140	+	Transcriptional regulator, TetR family
Human origin	M→T	ATG→ACG	584	Genic	dsbI	SMA01→0572	+	Thiol-disulfide oxidoreductase, DsbB-like
	A→T	GCC→ACC	310	Genic	sthD	SMA01→3447	−	β-fimbriae usher protein
	V→V	GTT→GTC	465	Genic	ispH	SMA01→3526	+	4-hydroxy-3-methylbut-2-enyl diphosphate reductase
	Q→STOP	CAA→TAA	252	Genic	rfbD	SMA01→4557	+	UDP-galactopyranose mutase
				Intergenic
Food origin	S→I	AGC→ATC	872	Genic	fliK	SMA01→2244	+	Flagellar hook-length control protein FliK
	P→L	CCT→CTT	17	Genic		SMA01→0101	+	Hypothetical protein
	A→V	GCC→GTC	1544	Genic	fdrA	SMA01→4374	+	Protein FdrA: acyl-CoA synthetaseb

^aCDS, coding sequence.

^bCoA, coenzyme.