Figure 5

CRISPR/Cas system structures found in SDSE isolates. The CRISPR structures of SDSE isolates were analyzed by direct sequencing of PCR-amplified CRISPR regions. The repeat-spacer regions (CRISPR) are enlarged. Open circles marked "R" are direct repeats, whereas the square boxes indicate respective spacers with numbers. GGS_124 contained only CRISPR1, whereas some of the other strains also contained CRISPR2 (Table 2).