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Eur J Clin Microbiol Infect Dis. 1991 Dec;10(12):1040-7.

Evaluation of fingerprinting methods for identification of Helicobacter pylori strains.

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Department of Medical Microbiology, St. Bartholomew's Hospital Medical School, West Smithfield, London, UK.


Variation amongst strains of Helicobacter pylori was examined by 35S-methionine-labelled protein SDS-PAGE (Radio-PAGE), immunoblot and DNA fingerprinting techniques. These methods allowed discrimination amongst isolates and showed total correlation. Pig and baboon gastric Helicobacter pylori-like organisms were found to be very similar to Helicobacter pylori by both Radio-PAGE and immunoblotting, whereas a Helicobacter mustelae isolate was markedly different. The HindIII restriction endonuclease digest patterns of Helicobacter pylori DNA illustrated the considerable genomic variation of this organism. The Radio-PAGE and immunoblot typing methods both gave precise identification of Helicobacter pylori strains, but Radio-PAGE was found to give higher resolution and represents a standardised universally applicable fingerprinting method for Helicobacter pylori.

[Indexed for MEDLINE]

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