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Table 4 Distribution of the first four amino acids following EPIYA motifs

From: Diversity of 3′ variable region of cagA gene in Helicobacter pylori strains isolated from Chinese population

Type EPIYA-D EPIYA-C Total
Occurrence and short segment Total Occurrence and short segment
A 356 QVNK, 119 KVNK, 4 EVNK, 4 QVAK 483 16 KVNK, 6 EVNK 22
B 477 QVAK, 60 QVNK, 4 KVNK, 3 QIAK, 2 QVTK, 2 QVAR, 1 QLTK, 1 QITK, 1 QVAQ, 1 QVNG 552 22 QVAK 22
C/D 480 TIDF 480 24 TIDD, 2 TIDE, 2 TIED 28