TABLE 1.
PCR amplification of aminoglycoside resistance genes
Gene(s) | Primer pair (5′→3′)a | Product size (bp) | Refer-ence |
---|---|---|---|
aadE | (1268) ACT GGC TTA ATC AAT TTG GG | 597 | 13 |
(1845) GCC TTT CCG CCA CCT CAC CG | |||
aadA | (564)b TGA TTT GCT GGT TAC GGT GAC | 284 | 16 |
(829)b CGC TAT GTT CTC TTG CTT TTG | |||
aac(6′)-aph(2") | (348) TGA TGA TTT TCC TTT GAT GT | 1,395 | 14 |
(1723) CAA TCT TTA TAA GTC CTT TT |
The numbers in parentheses denote the positions of the initial nucleotides in the primer sequences.
Since the aadA gene sequences for several different organisms are published, the nucleotide number varies and the primers were selected from within a universally conserved sequence.