Source:http://linkedlifedata.com/resource/pubmed/id/12571230
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
19
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pubmed:dateCreated |
2003-5-5
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pubmed:abstractText |
Gram-negative bacteria commonly interact with animal and plant hosts using type III secretion systems (TTSSs) for translocation of proteins into eukaryotic cells during infection. 10 of the 25 TTSS-encoding genes are homologous to components of the bacterial flagellar basal body, which the TTSS needle complex morphologically resembles. This indicates a common ancestry, although no TTSS sequence homologues for the genes encoding the flagellum are found. We here present an approximately 16-A structure of the central component, the needle, of the TTSS. Although the needle subunit is significantly smaller and shares no sequence homology with the flagellar hook and filament, it shares a common helical architecture ( approximately 5.6 subunits/turn, 24-A helical pitch). This common architecture implies that there will be further mechanistic analogies in the functioning of these two bacterial systems.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
9
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pubmed:volume |
278
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
17103-7
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:12571230-Bacterial Proteins,
pubmed-meshheading:12571230-Flagella,
pubmed-meshheading:12571230-Gene Expression Regulation, Bacterial,
pubmed-meshheading:12571230-Image Processing, Computer-Assisted,
pubmed-meshheading:12571230-Protein Conformation,
pubmed-meshheading:12571230-Protein Transport,
pubmed-meshheading:12571230-Shigella flexneri
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pubmed:year |
2003
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pubmed:articleTitle |
Helical structure of the needle of the type III secretion system of Shigella flexneri.
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pubmed:affiliation |
Department of Biochemistry, University of Oxford, South Parks Road, Oxford OX1 3QU, United Kingdom.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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