TABLE 5.

Comparison of RdxA and FrxA alterations in metronidazole-resistant H. pylori

H. pylori strain(s)	Alterationa in:		MIC (μg/ml)
	RdxA	FrxA
1740, 1857, 2228, 2511, 5078, 8076	−	−	128
1950	Δ	−	64
2312	Δ	−	64
1838	−	−	32
6413	−	Δ	32
5413	N	Δ	8
6102	N	Δ	8

^a−, premature truncation; Δ, unique missense mutation; N, no specific change.