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Table 2 Primer pairs, annealing temperatures and PCR protocols used to determine the antibiotic resistance gene profile of E. coli O157:H7+/H7- cattle and wastewater isolates

From: Phenotypic and genotypic antibiotic resistance profiles of Escherichia coli O157 from cattle and slaughterhouse wastewater isolates

Antibiotic

Gene

Annealing (°C)

Nucleotide Sequence (5ʹ - 3ʹ)

Product (bp)

Reference

Ampicillin

ampC

53

TTCTATCAAMACTGGCARCCa

550

Schwartz et al. (2003)

CCYTTTTATGTACCCAYGAa

Tetracycline

tetA

58

GGCCTCAATTTCCTGACG

372

Guillame et al. (2000)

AAGCAGGATGTAGCCTGTGC

tetB

58

GAGACGCAATCGAATTCGG

228

Guillame et al. (2000)

TTTAGTGGCTATTCTTCCTGCC

tetC

58

TGCTCAACGGCCTCAACC

379

Guillame et al. (2000)

AGCAAGACGTAGCCCAGCG

tetD

58

GGATATCTCACCGCATCTGC

436

Guillame et al. (2000)

CATCCATCCGGAAGTGATAGC

tetE

58

TCCATACGCGAGATGATCTCC

442

Guillame et al. (2000)

CGATTACAGCTGTCAGGTGGG

tetG

58

CAGCTTTCGGATTCTTACGG

844

Gebreyes and Altier (2002)

GATTGGTGAGGCTCGTTAGC

Florphenicol

floR

55

TATCTCCCTGTCGTTCCAG

399

Keyes et al. (2000)

AGAACTCGCCGATCAATG

Chloramphenicol

cmlA

62

CCGCCACGGTGTTGTTGTTATC

698

Gebreyes and Altier (2002)

CACCTTGCCTGCCCATCATTAG

Sulphisoxazole

sulI

58

GTGACGGTGTTCGGCATTCT

779

Lanz et al. (2003)

TCCGAGAAGGTGATTGCGCT

sulII

58

CGGCATCGTCAACATAACCT

721

Lanz et al. (2003)

TGTGCGGATGAAGTCAGCTC

Streptomycin

strA

56

CTTGGTGATAACGGCAATTC

548

Gebreyes and Altier (2002)

CCAATCGCAGATAGAAGGC

strB

54

ATCGTCAAGGGATTGAAACC

509

Gebreyes and Altier (2002)

GGATCGTAGAACATATTGGC

Aminoglycosides

aadA

60

GTGGATGGCGGCCTGAAGCC

525

Lanz et al. (2003)

AATGCCCAGTCGGCAGCG

  1. a According to the IUPAC (International Union of Pure and Applied Chemistry): M, A or C; R, A or G; Y, C or T