Table 3.

Sequences of functionally active marRgenes in 29 clinical fluoroquinolone-resistantE. coli

No. of strainsMutation in marR(nucleotide changed) at amino acida
Ser3Ala53Gly103Tyr137
12
15Ser (1751G→A)His (1853T→C)
1Asn (1452G→A)Ser (1751G→A)His (1853T→C)
1Glu (1602C→A)Ser (1751G→A)His (1853T→C)
  • a See reference 10.