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Table. 3.

Table. 3.

Amino acid substitutions in quinolone resistance determining regions of gyrA, gyrB, parC, and parE subunits in 56 ciprofloxacin-resistant E. coli isolates

No. of isolates (%) Amino acid substitution
gyrA gyrB parC parE
29 (51.8) S83L, D87N - S80I, E84V -
13 (23.2) S83L, D87N - S80I L416F
13 (23.2) S83L, D87N - S80I -
1 (1.8) S83L - S80I -

Abbreviations: S, serine; L, leucine; D, aspartic acid; N, asparagine; I, isoleucine; E, glutamic acid; V, valine; F, phenylalanine.

Korean J Clin Lab Sci 2021;53:217-24 https://doi.org/10.15324/kjcls.2021.53.3.217
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