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ABSTRACT Nine aph genes, including aph(2″)-Ib, aph(2″)-Ic, aph(2″)-Ig, aph(2″)-If, aph(2″)-If1, aph(2″)-If3, aph(2″)-Ih, aac(6′)-Ie–aph(2″)-Ia, and aac(6′)-Ie–aph(2″)-If2, were previously identified in Campylobacter. To measure the contribution of these alleles to aminoglycoside resistance,… Click to show full abstract
ABSTRACT Nine aph genes, including aph(2″)-Ib, aph(2″)-Ic, aph(2″)-Ig, aph(2″)-If, aph(2″)-If1, aph(2″)-If3, aph(2″)-Ih, aac(6′)-Ie–aph(2″)-Ia, and aac(6′)-Ie–aph(2″)-If2, were previously identified in Campylobacter. To measure the contribution of these alleles to aminoglycoside resistance, we cloned nine genes into the pBluescript and expressed them in Escherichia coli DH5α. The nine aph expressed in E. coli showed various levels of resistance to gentamicin, kanamycin, and tobramycin. Three genes, aac(6″)-Ie–aph(2″)-Ia, aph2″-If1, and aph2″-Ig, showed increased MICs to amikacin, and five aph genes were transferrable.
Journal Title: Antimicrobial Agents and Chemotherapy
Year Published: 2017
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