منابع مشابه
Immunoprotectivity of Salmonella enterica serovar Enteritidis virulence protein, InvH, against Salmonella typhi
Objective(s):Typhoid fever is a dreadful disease of a major threat to public health in developing countries. Vaccination with bacterial immunodominant components such as surface proteins may prove as a potent alternative to live attenuated vaccines. InvH, an important part of needle complex in type three secretion system (TTSS) plays important role in efficient bacterial adherence and entry int...
متن کاملin Salmonella typhi
S.typhi ompSI constitutes a novel porùt gene. It has seven putative OmpR-binrling boxes and three promoters. Our current model for expression contempLates activation of transcription, from Pl, by OmpR-bindùtg to boxes II anct III (Ctype, low affinity); whereas boxes I and IV-VII would be ùwolved in negative regulation. The fact that ompSI expression increases more thayt 100-foçt upon removal of...
متن کاملPolysaccharide Antigen of Salmonella typhi
Classical identification of S. typhi involves culture on primary agar plates and requires another 24 hours for biochemical testing. The colonies suspected to be Salmonellae will be further tested with their speci fic antisera. Most isolates of Sal monella from natural sources can be classified serologically into five groups, A to E, by a combination of multiple o (somatic), H (flagella) and V...
متن کاملCloning and sequencing of ompf Salmonella typhi Salmonella ompf gene in Escherichia coli Origami
Background and Aim: Salmonella Typhi belongs to the family Enterobacteriaceae, gram-negative bacilli and causes gastrointestinal diseases such as typhoid. This bacterium has a special structure and various genes, including the ompf gene (outer membrane protein). Recent studies have shown the possibility of using ompf in the development of a diagnostic tuberculosis vaccine. Therefore, the aim of...
متن کاملSalmonella typhi and other salmonellas
There is almost a north-south divide between the geographical prevalence of the two broad clinical syndromes caused by the organisms of the genus salmonella. The prolonged bacteraemic illnesses of typhoid and paratyphoid fevers, caused by the exclusively human pathogens, Salmonella typhi and paratyphi A, B, and C, are endemic only in the economically disadvantaged countries where poor sanitatio...
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ژورنال
عنوان ژورنال: Science
سال: 2006
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.1134933