منابع مشابه
Cytopathic effects of Campylobacter pylori urease.
I McCartney RA, Banatvala JE, Bell EJ. Routine use of p-antibody-capture ELISA for the serological diagnosis of Coxsackie B virus infections. J Med Virol 1986;19:205-12. 2 Pugh SF. Heterotypic reactions in a radioimmunoassay for Coxsackie B virus specific IgM. J Clin Pathol 1984;37:433-9. 3 Bell EJ, McCartney RA, Basquill D, Chaudhuri AKR. p-Antibody capture ELISA for the rapid diagnosis of ent...
متن کاملThe urease enzymes of Campylobacter pylori and a related bacterium.
The urease enzyme of Campylobacter pylori was studied and compared with that of a related spiral-shaped bacterium, St1, isolated from the rodent ileum. Both bacteria possessed constitutive urease enzymes with activities up to 20-70 times that of Proteus vulgaris. This activity was retained on SDS-polyacrylamide gels. A major catalytic subunit of mol. wt 300,000 was located for all (six) strains...
متن کاملHemagglutination activity of Campylobacter pylori.
Forty-five strains of Campylobacter pylori isolated from gastric biopsy specimens showed distinct hemagglutination activity. The activity was partially decreased by treatment with heat, trypsin, or an alkylating agent and was inhibited by porcine gastric mucin but not by various compounds, including D-mannose.
متن کاملIsolation of Helicobacter pylori genes that modulate urease activity.
Helicobacter pylori urease, a nickel-requiring metalloenzyme, hydrolyzes urea to NH3 and CO2. We sought to identify H. pylori genes that modulate urease activity by constructing pHP8080, a plasmid which encodes both H. pylori urease and the NixA nickel transporter. Escherichia coli SE5000 and DH5alpha transformed with pHP8080 resulted in a high-level urease producer and a low-level urease produ...
متن کاملHelicobacter pylori Urease Activity is Influenced by Ferric Uptake Regulator
PURPOSE The role of the Ferric Uptake Regulator (FUR) in the acid resistance of Helicobacter pylori (H. pylori) has been thought to be independent of urease. However, we demonstrated in this study that Fur influences urease activity. MATERIALS AND METHODS A fur knockout mutant of H. pylori was constructed by replacing the Fur gene with a kanamycin resistant marker gene. The wild-type H. pylor...
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ژورنال
عنوان ژورنال: Journal of Clinical Pathology
سال: 1988
ISSN: 0021-9746
DOI: 10.1136/jcp.41.1.112-a