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Table 5 GyrA mutations in sequenced levofloxacin-resistant H. pylori strains

From: High primary resistance to metronidazole and levofloxacin, and a moderate resistance to clarithromycin in Helicobacter pylori isolated from Karnataka patients

Strain

MIC (µg/ml)

Mutation(s)

KH1

4

D91N, N87K

KH2

4

R295H

KH3

4

D91N

KH6

4

D91G

KH8

4

D91N

KH9

4

D91N

KH12

2

D91N

KH13

4

D91N

KH14

4

N87I

KH15

4

D91G

KH16

4

–

KH17

4

D91G

KH18

4

N87K

KH19

4

D91N

KH20

4

5-amino-acid N-terminal extension

KH21

4

D91N

KH25

4

D91Y

KH26

4

N87K

KH27

4

D91Y

KH28

4

D91Y

KH30

4

D91N

KH32

4

D91G

KH33

4

D91N

KH36

4

N87K

KH37

4

D91N

KH38

4

N87K

KH40

4

5-amino-acid N-terminal extension

KH41

4

N87K

KH43

4

D91N

KH44

4

N87K

KH45

4

N87K