Yops of Yersinia spp. pathogenic for humans
نویسندگان
چکیده
منابع مشابه
Human carriage of Yersinia spp.
Examination of faecal specimens for the presence of Yersinia spp. during a 1-year period yielded isolations from 3.5% of patients. Salmonella spp., Campylobacter spp. and Shigella spp. were isolated from 2.5%, 2.8% and 0.34% of patients respectively. Most isolates belonged to Y. enterocolitica biotype 1 (53%) and Y. frederikseni (39%). The most frequently encountered serotypable strains were se...
متن کاملPathogenic properties of Yersinia enterocolitica.
A total of 88 isolates of Yersinia enterocolitica was examined for heat-stable enterotoxin production and ability to penetrate HeLa cells and evoke keratoconjunctivitis in guinea pigs (Séreny test) as potential pathogenic properties. All 49 isolates belonging to serotypes O:3, O:8, O:9, and O:5,27 and only 5 of 39 strains of other serotypes were HeLa positive. Séreny-positive strains were found...
متن کاملLcrG-LcrV interaction is required for control of Yops secretion in Yersinia pestis.
Yersinia pestis expresses a set of plasmid-encoded virulence proteins called Yops and LcrV that are secreted and translocated into eukaryotic cells by a type III secretion system. LcrV is a multifunctional protein with antihost and positive regulatory effects on Yops secretion that forms a stable complex with a negative regulatory protein, LcrG. LcrG has been proposed to block the secretion app...
متن کاملRoles of LcrG and LcrV during type III targeting of effector Yops by Yersinia enterocolitica.
Yersinia enterocolitica target effector Yop proteins into the cytosol of eukaryotic cells by a mechanism requiring the type III machinery. LcrG and LcrV have been suggested to fulfill essential functions during the type III targeting of effector Yops. It is reported here that knockout mutations of lcrG caused mutant yersiniae to prematurely secrete Yops into the extracellular medium without abo...
متن کاملIsolation of Yersinia spp. from bovine feces.
Yersinia spp. were sought in 618 fecal samples from cows. Four strains of Yersinia enterocolitica, serotype O:12,26 (one), O:13,7 (two), and O:18 (one); seven strains of Yersinia kristensenii, serotype O:11,24 (five) and O:12,26 (two); and one strain of Yersinia pseudotuberculosis serotype IIB, were isolated. This is the first time that Y. pseudotuberculosis has been isolated from cows in Japan...
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ژورنال
عنوان ژورنال: Infection and Immunity
سال: 1993
ISSN: 0019-9567,1098-5522
DOI: 10.1128/iai.61.8.3105-3110.1993