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https://hdl.handle.net/2440/2999
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dc.contributor.author | Morona, R. | - |
dc.contributor.author | Van Den Bosch, L. | - |
dc.date.issued | 2003 | - |
dc.identifier.citation | FEMS Microbiology Letters, 2003; 221(2):213-219 | - |
dc.identifier.issn | 0378-1097 | - |
dc.identifier.issn | 1574-6968 | - |
dc.identifier.uri | http://hdl.handle.net/2440/2999 | - |
dc.description | The definitive version is available at www.blackwell-synergy.com | - |
dc.description.abstract | The lipopolysaccharides (LPS) of Shigella flexneri are important for virulence and their O antigen (Oag) polysaccharide chains affect IcsA (VirG)-mediated actin-based motility (ABM) within mammalian cells. S. flexneri 2a 2457T has smooth LPS whose Oag chains have two modal lengths (short (S)-type and very long (VL)-type), and has IcsA predominantly located at one pole on its cell surface. A S. flexneri 2457T wzzSF mutant (RMA696) has VL-type Oag but not S-type Oag chains, less IcsA detectable by immunofluorescence on its cell surface, reduced virulence and defective ABM. Introduction of a plasmid encoding IcsA into S. flexneri wzzSF showed that multicopy icsA could suppress the virulence defects (Sereny reaction, HeLa cell monolayer plaquing, and F-actin comet tail formation) caused by the wzzSF mutation suggesting that the VL-type Oag chains were masking IcsA and limiting the amount available to initiate ABM. | - |
dc.description.statementofresponsibility | Renato Morona and Luisa Van Den Bosch | - |
dc.language.iso | en | - |
dc.publisher | Elsevier Science BV | - |
dc.source.uri | http://dx.doi.org/10.1016/s0378-1097(03)00217-9 | - |
dc.subject | Hela Cells | - |
dc.subject | Humans | - |
dc.subject | Shigella flexneri | - |
dc.subject | Lipopolysaccharides | - |
dc.subject | O Antigens | - |
dc.subject | Bacterial Proteins | - |
dc.subject | DNA-Binding Proteins | - |
dc.subject | Transcription Factors | - |
dc.subject | Fluorescent Antibody Technique | - |
dc.subject | Virulence | - |
dc.subject | Mutation | - |
dc.title | Multicopy icsA is able to suppress the virulence defect caused by wzzSF mutation in the Shigella flexneri | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/S0378-1097(03)00217-9 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Morona, R. [0000-0001-7009-7440] | - |
Appears in Collections: | Aurora harvest 6 Molecular and Biomedical Science publications |
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