Table 2.
AR and integrase gene profiles of SS-O157 (n = 53) isolates and control O157 (n = 6) strains.
| O157 strain grouping | PCR profilesa | |
|---|---|---|
| SS-O157 isolates | C1 | acrB, ais, arnA, emrA, fsr, int, macA, mdtH, pmrD, rarD, yfbH, yjcP, yjcR |
| C5 | acrB, ais, arnA, emrA, fsr, int, macA, marA, mdtH, mdtO, pmrD, rarD, sul2, yfbH, yjcP, yjcR | |
| C2, 4, 6, 9, 11, 12, 13, 15, 17, 18, 19, 22, 28, 31, 32, 34, 35, 36, 38, 39, 40, 42, 53, 54, 57, 62, 66, 73, 74, 76, 77, 78, 80, 83, 85, 87, 88, 93, 94, 96, 98, 101 | acrB, ais, arnA, emrA, fsr,int, macA, marA, mdtH, mdtO, pmrD, rarD, yfbH, yjcP, yjcR | |
| C7, 90 | aac (3)-IV, acrB, ais, arnA, emrA, fsr, int, macA, marA, mdtH, mdtO, pmrD, rarD, yfbH, yjcP, yjcR | |
| C14, 16 | acrB, ais, arnA, macA, marA, mdtH, mdtO, yfbH, yjcP, yjcR | |
| C23, 49 | acrB, ais, arnA, macA, marA, mdtH, mdtO, pmrD, rarD, yfbH, yjcP, yjcR | |
| C45 | acrB, ais, arnA, emrA, fsr, int, macA, marA, mdtH, pmrD, rarD, yfbH, yjcP, yjcR | |
| C99 | acrB, ais, arnA, emrA, fsr, macA, marA, mdtH, mdtO, pmrD, rarD, sul2, yfbH, yjcP, yjcR | |
| C104 | acrB, ais, arnA, emrA, fsr, int, macA, marA, mdtH, mdtO, pmrD, rarD, sul2, tetB, yfbH, yjcP, yjcR | |
| Control O157 strains | Sakai, EDL 933, JEONG-1266, SS 52 | acrB, ais, arnA, emrA, fsr, int, macA, marA, mdtH, mdtO, pmrD, rarD, sul2, yfbH, yjcP, yjcR |
| EC4115, SS 17 | acrB, ais, arnA, emrA, fsr, int, macA, marA, mdtH, mdtO, pmrD, rarD, yfbH, yjcP, yjcR |
aGenes: aac(3)-IV = Aminoglycoside resistance; aadA1 = Streptomycin resistance; acrB = Acriflavine, aminoglycoside, and multidrug resistance efflux pump; ais = Polymyxin resistance protein, histidine phosphatase family protein; arnA = Polymyxin resistance protein; blaCTX-M = Cephalosporin resistance; blaTEM = Ampicillin resistance; catA1 = Chloramphenicol resistance; dfrA1 = Trimethoprim resistance; dhfrI = Trimethoprim resistance; emrA = Multidrug resistance protein A; fsr = Fosfomycin resistance; int = Integrase; macA = Macrolide-specific efflux protein; marA = Multiple antibiotic resistance protein; mcr1 = Colistin resistance; mcr2 = Colistin resistance; mdtH = Multidrug resistance protein; mdtO = Multidrug resistance protein; mph(A) = Macrolides resistance; pmrD = Polymyxin B resistance; qnrA = Quinolones resistance; rarD = Chloramphenicol resistance; sul1 = Sulfonamide resistance; tetA, tetB, tetC = Tetracycline resistance; yfbH = Polymyxin resistance; yjcP = Outer membrane component of tripartite multidrug resistance system; yjcR = Inner membrane component of tripartite multidrug resistance system.