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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4 Pt 2
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pubmed:dateCreated |
1996-11-26
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pubmed:abstractText |
Bordetella species are respiratory pathogens that infect humans and other animals. A majority of the virulence factors expressed by these bacteria are regulated by a master control locus, BvgAS, a member of the two-component family of signal transduction systems. BvgAS senses environmental signals and mediates signal transduction by a phosphorylation cascade that leads to a biphasic transition between the Bvg+ and Bvg- phases. From natural host studies using Bordetella bronchiseptica, we have found that expression of Bvg+ phase factors, which include adhesins and toxins, is required for successful colonization of the mammalian respiratory tract. Suppression of the Bvg- phase motility phenotype is necessary for a successful interaction with the host. Although the Bvg- phase does not appear to be required in vivo, it does confer the ability to survive under conditions of severe nutrient deprivation. We hypothesize that the Bvg+ phase is necessary and sufficient for respiratory tract colonization and the Bvg- phase is adapted for survival in environments encountered during transmission between hosts.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
1073-449X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
154
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
S150-4
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:8876534-Animals,
pubmed-meshheading:8876534-Bordetella,
pubmed-meshheading:8876534-Humans,
pubmed-meshheading:8876534-Phenotype,
pubmed-meshheading:8876534-Phosphorylation,
pubmed-meshheading:8876534-Respiratory System,
pubmed-meshheading:8876534-Signal Transduction,
pubmed-meshheading:8876534-Virulence
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pubmed:year |
1996
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pubmed:articleTitle |
Genetic regulation of airway colonization by Bordetella species.
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pubmed:affiliation |
Department of Microbiology and Immunology, School of Medicine, University of California, Los Angeles, USA.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Review,
Research Support, Non-U.S. Gov't
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