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Table 4 Distribution of the CRISPR loci detected in 13 different strains of S. Typhimurium

From: Whole genome sequencing provides possible explanations for the difference in phage susceptibility among two Salmonella Typhimurium phage types (DT8 and DT30) associated with a single foodborne outbreak

Strain

Phage type

Accession number

Total no. of spacers in CRISPR loci

Spacers no. In CRISPR-1 (CRISFK-1 coordinates)

Spacers no. In CRISPR-2 (CRISPR-2 coordinates)

UK-1

DTI

CP002614

37

14 (3045088–3046075)

23 (3062207–3063639)

DT2

DT2

HG326213

46

20 (3035608–3036960)

26 (3053092–3054707)

lt2

DT4

AE006468

55

23 (3076611–3078147)

32 (3094279–3096260)

SL1344

DT44

FQ312003

37

14 (3099172–3100159)

23 (3116291–3117723)

ST4/74

DT44

CP002487

37

14 (3099172–3100159)

23 (3116291–3117723)

NCTC13348

DT104

HF937208

36

10 (3111855–3112493)

26 (3128625–3130239)

14028S

DT133

CP001363

48

22 (3096848–3098323)

26 (3114455–3116070)

08–1736

–

CP006602

48

22 (4332390–4333865)

26 (4349997–4351612)

U288

U288

CP003836

54

22 (3074262–3075737)

32 (3091869–3093850)

798

–

CP003386

44

22 (3097927–3099324)

22 (3115456–3116827)

D23580

Untypable

FN424405

39

21 (3069598–3071012)

IS (3087144–3088271)

T000240

DT12

AP011957

52

20 (3100041–3101393)

32 (3117525–3119506)

PB225

DT8

ERS640E55

31

22

9

MS57

DT30

ERS640854

31

22

9

  1. Each strain (phage type) contains a variable number of spacers and both DT8 and DT30 have the lowest number of spacers
  2. SL1344 and ST4/74 strains contain identical spacers and both belong to the same phage type (DT44)
  3. UK-1 (DT1) has the same number of spacers as SL1344 (DT44) and ST4/74 (DT44), however they belong to a different phage type as DT1 has 6 unique spacers that do not occur in DT44 variants
  4. (–) indicates that phage type is not known