Table 1.

Detection of IS1272 in staphylococci with different mecA and mec regulator gene statuses

Bacterial species (no. of strains)mecAmec regulator geneClassification of the mec region (mecregion type)Total no. of isolatesNo. of isolates with:
mecR1(mecRAa)mecIIS1272ΔmecR1-IS1272junction sequence
S. aureus(102)+++1380
+(+)2101010
+320
524
S. epidermidis(59)+++1401
+(+)2121212b
+311
63
S. haemolyticus(23)+++121
+(+)2331
+31010
87
  • a (mecRA) denotes the 5′ portion ofmecR1 (10).

  • b In one S. epidermidis isolate (SH194), a junction sequence longer than those of other isolates was detected (Fig. 1).