Distribution of Open Reading Frames of Plasticity Region of Strain J99 in <i>Helicobacter pylori</i> Strains Isolated from Gastric Carcinoma and Gastritis Patients in Costa Rica

Abstract excerpt

The plasticity region of Helicobacter pylori strain J99 is a large chromosomal segment containing 33 strain-specific open reading frames (ORFs) with characteristics of a pathogenicity island. To study the diversity of the plasticity region, 22 probes corresponding to 20 ORFs inside the plasticity region and two ORFs on its boundaries were hybridized to genomic DNA isolated from clinical strains of H. pylori from...

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