Alteration of GyrA amino acid required for ciprofloxacin resistance in Klebsiella pneumoniae isolates in China

作者:Fu Yingmei; Guo Lishuang; Xu Yan; Zhang Wenli; Gu Jiaao; Xu Jianfeng; Chen Xiaobei; Zhao Yuehui; Ma Jiayu; Liu Xinghan; Zhang Fengmin*
来源:Antimicrobial Agents and Chemotherapy, 2008, 52(8): 2980-2983.
DOI:10.1128/AAC.00151-08

摘要

Resistance to ciprofloxacin was detected in 111 (48.1%) isolates of Klebsiella pneumoniae from China. GyrA alterations were identified in the ciprofloxacin-resistant and ciprofloxacin-susceptible isolates. The results, including previously published data, indicate that the single substitution Ser83 -> Ile and three types of double mutations at Ser83 and Asp87 were required for ciprofloxacin resistance (P < 0.05).