Literature DB >> 8283959

Ultrastructural localization of urease of Helicobacter pylori.

G Bode1, P Malfertheiner, G Lehnhardt, M Nilius, H Ditschuneit.   

Abstract

Helicobacter pylori urease was characterized by means of an enzyme histochemical electron microscopic technique. Ultrastructural analysis revealed no urease activity in one strain; in seven H. pylori strains (43.75%), urease activity was associated with the cell membrane. Eight strains (50.0%) showed reaction product located within the cytoplasm. Urease activity showed no correlation with localization of activity. Our results demonstrate that H. pylori urease is not uniform in all H. pylori strains, and differences in activity and localization of urease activity may account for different virulence activities.

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Year:  1993        PMID： 8283959     DOI： 10.1007/BF00579622

Source DB:  PubMed          Journal:  Med Microbiol Immunol        ISSN： 0300-8584            Impact factor:   3.402


  37 in total

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Journal:  Microb Pathog       Date:  1991-01       Impact factor: 3.738

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Journal:  J Clin Pathol       Date:  1991-08       Impact factor: 3.411

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Journal:  J Gen Microbiol       Date:  1989-06

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Journal:  J Infect Dis       Date:  1988-03       Impact factor: 5.226
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  13 in total

1.  Identification of a novel penicillin-binding protein from Helicobacter pylori.

Authors:  P Krishnamurthy; M H Parlow; J Schneider; S Burroughs; C Wickland; N B Vakil; B E Dunn; S H Phadnis
Journal:  J Bacteriol       Date:  1999-08       Impact factor: 3.490

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Journal:  Infect Immun       Date:  1996-07       Impact factor: 3.441

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Journal:  Infect Immun       Date:  2000-02       Impact factor: 3.441

4.  Silencing urease: a key evolutionary step that facilitated the adaptation of Yersinia pestis to the flea-borne transmission route.

Authors:  Iman Chouikha; B Joseph Hinnebusch
Journal:  Proc Natl Acad Sci U S A       Date:  2014-12-01       Impact factor: 11.205

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Authors:  Ellen J Beswick; Irina V Pinchuk; Kyle Minch; Giovanni Suarez; Johanna C Sierra; Yoshio Yamaoka; Victor E Reyes
Journal:  Infect Immun       Date:  2006-02       Impact factor: 3.441

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Journal:  World J Gastroenterol       Date:  2006-09-21       Impact factor: 5.742

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Journal:  Clin Microbiol Rev       Date:  1997-10       Impact factor: 26.132

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Journal:  Infect Immun       Date:  1996-03       Impact factor: 3.441

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Authors:  P Krishnamurthy; M Parlow; J B Zitzer; N B Vakil; H L Mobley; M Levy; S H Phadnis; B E Dunn
Journal:  Infect Immun       Date:  1998-11       Impact factor: 3.441

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Authors:  H L Mobley; M D Island; R P Hausinger
Journal:  Microbiol Rev       Date:  1995-09
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