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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