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Fig. 4 | BMC Bioinformatics

Fig. 4

From: Not all predicted CRISPR–Cas systems are equal: isolated cas genes and classes of CRISPR like elements

Fig. 4

Comparison of the CRISPRs found in S. aureus. a The complete subtype III-A CRISPR-Cas systems identified in S. aureus 08BA02176. b The multiple alignments of all real CRISPRs grouped in seven clusters, using one representative repeat sequence for each cluster. S. aureus strain names are shown on the left. c The phylogenetic tree of the CRISPRs, built from the multiple alignment shown in (b). CIG290a represents the repeat sequence in the orphan CRISPR in S. aureus CIG290. CIG290b and CIG290c represent the repeat sequence in the CRISPRs that are in the downstream and upstream of the cas locus in S. aureus CIG290 (contig: NZ_AIES01000010), respectively. MSHR1132a represents the repeat sequence in the orphan CRISPR in S. aureus MSHR1132, whereas MSHR1132b represents the repeat sequence in a CRISPR that is in the upstream of subtype III-A cas locus (the distance between the MSHR1132b and the closest cas gene is 74 bps)

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