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Table 5 Difference of amino acid frequency at loci: comparison of each disease in genotypes of vacA s1m1 type

From: Differences in amino acid frequency in CagA and VacA sequences of Helicobacter pylori distinguish gastric cancer from gastric MALT lymphoma

Position Amino acid residue Gastric cancer (GC) (n = 15) MALT (n = 10) P value Gastritis (G) (n = 18) P value
26,695 F32 GC vs MALT G vs GC G vs MALT
672I 672I I 9 1 0.033 8 0.49 0.19
V 6 8 10
Sequence gap 0 1 0
921D 921N D 0 3 0.042 8 0.0036 (P < 0.01) 0.69
N 15 6 10
Sequence gap 0 1 0
1037N 1037S S 13 6 0.042 16 0.16 0.30
N 2 0 0
G 0 3 2
Sequence gap 0 1 0