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Table 1 Primers used for PCR amplification and sequencing of bla CTX-M genes

From: Randomized controlled trial of piperacillin-tazobactam, cefepime and ertapenem for the treatment of urinary tract infection caused by extended-spectrum beta-lactamase-producing Escherichia coli

Target

Name of primer

Sequence (5′ ➔ 3′)

Expected size of amplicon (bp)

Reference

CTX-M-1 group

CTX-M-1F

CTX-M-1R

GCAGCACCAGTAAAGTGATGGGCTGGGTGAAGTAAGTGACC

591

[28]

CTX-M-9 group

CTX-M-9F

CTX-M-9R

GCTGGAGAAAAGCAGCGGAGGTAAGCTGACGCAACGTCTG

474

[29]