نتایج جستجو برای: yersinia pestis
تعداد نتایج: 6946 فیلتر نتایج به سال:
We here report the draft genome sequences of 8 Yersinia pestis subsp. microtus bv. caucasica strains isolated from the East Caucasian (previous name, Dagestan) mountain focus (no. 39), representing the most ancient branch of the 0.PE2 phylogroup circulating in populations of common voles (Microtus arvalis).
Yersinia pestis, the causative agent of plague, is best known for historical pandemics, but still actively causes disease in many parts of the world. Y. pestis is a recently derived clone of the pathogenic species Yersinia pseudotuberculosis, but is more associated with human infection. Numerous studies have documented genomic changes since the two species differentiated, although all of these ...
Plague, which is most often caused by the bite of Yersinia pestis-infected fleas, is a rapidly progressing, serious disease that can be fatal without prompt antibiotic treatment. In late December 2007, an outbreak of acute gastroenteritis occurred in Nimroz Province of southern Afghanistan. Of the 83 probable cases of illness, 17 died (case fatality 20·5%). Being a case was associated with cons...
A type III secretion system (T3SS) in pathogenic Yersinia species functions to translocate Yop effectors, which modulate cytokine production and regulate cell death in macrophages. Distinct pathways of T3SS-dependent cell death and caspase-1 activation occur in Yersinia-infected macrophages. One pathway of cell death and caspase-1 activation in macrophages requires the effector YopJ. YopJ is an...
YopM is a leucine-rich repeat (LRR)-containing effector in several Yersinia species, including Yersinia pestis and Y. pseudotuberculosis. Different Yersinia strains encode distinct YopM isoforms with variable numbers of LRRs but conserved C-terminal tails. A 15-LRR isoform in Y. pseudotuberculosis YPIII was recently shown to bind and inhibit caspase-1 via a YLTD motif in LRR 10, and attenuation...
Yersinia pseudotuberculosis (Y. pseudotuberculosis) is a gramnegative facultative anaerobe bacillus that can grow at low temperature (4°C). Consequently, the quantity of bacteria in food after several days of conservation in a refrigerator increases dramatically. It belongs, together with its homologue Yersinia pestis, to the family of Enterobacteriaceae. Yersinia pseudotuberculosis strains can...
Yersinia pestis uses type III effector proteins to target eukaryotic signaling systems. The Yersinia outer protein (Yop) M effector from the Y. pestis strain is a critical virulence determinant; however, its role in Y. pestis pathogenesis is just beginning to emerge. Here we first identify YopM as the structural mimic of the bacterial IpaH E3 ligase family in vitro, and establish that the conse...
The aerosol form of the bacterium Yersinia pestis causes the pneumonic plague, a rapidly fatal disease. At present, no plague vaccines are available for use in the United States. One candidate for the development of a subunit vaccine is the Y. pestis virulence (V) antigen, a protein that mediates the function of the Yersinia outer protein virulence factors and suppresses inflammatory responses ...
Yersinia pestis CO92 has 12 open reading frames encoding putative conventional autotransporters (yaps), nine of which appear to produce functional proteins. Here, we demonstrate the ability of the Yap proteins to localize to the cell surface of both Escherichia coli and Yersinia pestis and show that a subset of these proteins undergoes processing by bacterial surface omptins to be released into...
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