| Development of a Scheme for Genotyping Helicobacter pylori Based on Allelic Variation in Urease Subunit Genes | |||||||||||||
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| Helicobacter pylori urease subunit genes in 383 isolates from 10 countries were investigated by PCR-restriction fragment length polymorphism (HaeIII) analysis. Eighty-two different ureAB profiles were documented by reference to known sequences. Variation among 51% of strains was accounted for by 10 predominant patterns, which provided a unique framework for categorizing isolates with geographically diverse origins. | |||||||||||||
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