title: Construction of urease-negative mutants of Yersinia enterocolitica serotypes O:3 and o:8: role of urease in virulence and arthritogenicity.
abstract: Yersinia enterocolitica serotype O:3 and O:8 urease-negative mutants unable to express the 19-kDa beta subunit of urease were constructed and tested for virulence and arthritogenicity. Our results indicate that urease is needed for full virulence in oral infections and that it is not an arthritogenic factor in the rat model.
authors.affiliation: Turku Immunology Center, National Public Health Institute, and Abo Academy University, Turku, Finland. griler@utu.fi
authors.forename: C
authors.initials: C
authors.lastname: Gripenberg-Lerche
authors.forename: L
authors.initials: L
authors.lastname: Zhang
authors.forename: P
authors.initials: P
authors.lastname: Ahtonen
authors.forename: P
authors.initials: P
authors.lastname: Toivanen
authors.forename: M
authors.initials: M
authors.lastname: Skurnik
mesh_terms: D000818:Animals; D001170:Arthritis, Infectious / Q000209:etiology*; D005260:Female; D008297:Male; D051379:Mice; D008811:Mice, Inbred DBA; D051381:Rats; D011917:Rats, Inbred Lew; D012703:Serotyping; D014510:Urease / Q000172:deficiency / Q000235:genetics / Q000502:physiology*; D014774:Virulence; D015008:Yersinia enterocolitica / Q000472:pathogenicity*
chemical_list: D014510:Urease