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Table 3 nsSNPs and fsIndels in genes conferring resistance to LEV

From: Antimicrobial resistance patterns and genetic elements associated with the antibiotic resistance of Helicobacter pylori strains from Shanghai

Gene

Sequence change

No. among LEV-R (n = 39)

No. among LEV-S (n = 73)

P

Nucleotide position

Amino acid position

gyrA

SNP

 C261A

N87T

8 (20.51%)

0 (0.00%)

0.0001

 C261G

N87I

9 (23.08%)

0 (0.00%)

 < 0.0001

 G271A

D91G

12 (30.77%)

0 (0.00%)

 < 0.0001

 G271T

D91Y

5 (1.67%)

0 (0.00%)

0.0043

Indel

 2455_2456insAT (AC to AATC)

T819fs

32 (82.05%)

57 (78.08%)

0.6203

 2460_2463del (CTTCG to C)

S820fs

34 (87.18%)

62 (84.93%)

0.7460

 2472delT (AT to A)

N824fs

38 (97.44%)

66 (90.41%)

0.2577

 No change

No change

1 (2.56%)

7 (9.59%)

0.2577

gyrB

SNP

 C1801T

L601F

37 (94.87%)

73 (100.00%)

0.3423

 No change

No change

2 (5.13%)

0 (0.00%)

0.1192