Search Results - "Létoffé, S"

Heme acquisition by hemophores by Cescau, S, Cwerman, H, Létoffé, S, Delepelaire, P, Wandersman, C, Biville, F

“…Bacterial hemophores are secreted to the extracellular medium, where they scavenge heme from various hemoproteins due to their higher affinity for this…”
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Exposure to Secreted Bacterial Factors Promotes HIV-1 Replication in CD4 + T Cells by Znaidia, M, de Souza-Angelo, Y, Létoffé, S, Staropoli, I, Grzelak, L, Ghigo, J M, Schwartz, O, Casartelli, N

“…Microbial translocation is associated with systemic immune activation in HIV-1 disease. Circulating T cells can encounter microbial products in the bloodstream…”
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Protein secretion in gram‐negative bacteria: assembly of the three components of ABC protein‐mediated exporters is ordered and promoted by substrate binding by Létoffé, S., Delepelaire, P., Wandersman, C.

“…One of the strategies used by Gram‐negative bacteria to secrete proteins across the two membranes which delimit the cells, is sec independent and dedicated to…”
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A new type of hemophore-dependent heme acquisition system of Serratia marcescens reconstituted in Escherichia coli by Ghigo, J M, Létoffé, S, Wandersman, C

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Isolation and characterization of an extracellular haem‐binding protein from Pseudomonas aeruginosa that shares function and sequence similarities with the Serratia marcescens HasA haemophore by Létoffé, Sylvie, Redeker, Virginie, Wandersman, Cécile

“…The major mechanism by which bacteria acquire free or haemoglobin‐bound haem involves direct binding to specific outer membrane receptors. Serratia marcescens…”
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Identification and Characterization of the Hemophore-Dependent Heme Acquisition System of Yersinia pestis by ROSSI, Maria-Silvia, FETHERSTON, Jacqueline D, LETOFFE, Sylvie, CARNIEL, Elisabeth, PERRY, Robert D, GHIGO, Jean-Marc

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Protein secretion by Gram-negative bacterial ABC exporters – a review by Binet, Rachel, Létoffé, Sylvie, Ghigo, Jean Marc, Delepelaire, Philippe, Wandersman, Cécile

“…One of the strategies used by Gram-negative bacteria to secrete proteins across the two membranes which delimit the cells is sec-independent and dedicated to…”
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Protease secretion by Erwinia chrysanthemi: the specific secretion functions are analogous to those of Escherichia coli alpha‐haemolysin by Létoffé, S., Delepelaire, P., Wandersman, C.

“…A 5.5 kb DNA fragment carrying the functions necessary for the specific secretion of the extracellular metalloproteases B and C produced by the Gram‐negative…”
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Interactions of HasA, a bacterial haemophore, with haemoglobin and with its outer membrane receptor HasR by Létoffé, Sylvie, Nato, Faridabano, Goldberg, Michel E., Wandersman, Cécile

“…The major mechanism by which bacteria acquire free or haemoglobin‐bound haem involves direct binding of haem to specific outer membrane receptors. Serratia…”
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Haemophore‐mediated bacterial haem transport: evidence for a common or overlapping site for haem‐free and haem‐loaded haemophore on its specific outer membrane receptor by Létoffé, Sylvie, Deniau, Clarisse, Wolff, Nicolas, Dassa, Emmanuel, Delepelaire, Philippe, Lecroisey, Anne, Wandersman, Cécile

“…Bacterial extracellular haemophores also named HasA for haem acquisition system form an independent family of haemoproteins that take up haem from host haeme…”
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Functional characterization of the HasA(PF) hemophore and its truncated and chimeric variants: determination of a region involved in binding to the hemophore receptor by Létoffé, S, Omori, K, Wandersman, C

“…Hemophores are secreted by several gram-negative bacteria (Serratia marcescens, Pseudomonas aeruginosa, Pseudomonas fluorescens, and Yersinia pestis) and form…”
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Crystal structure of a complex between Serratia marcescens metallo-protease and an inhibitor from Erwinia chrysanthemi by Baumann, U, Bauer, M, Létoffé, S, Delepelaire, P, Wandersman, C

“…The crystal structure of the complex between the 50 kDa metallo-endoproteinase from Serratia marcescens (SMP), a member of the metzincin superfamily, and an…”
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Identification of two components of the Serratia marcescens metalloprotease transporter: protease SM secretion in Escherichia coli is TolC dependent by LETOFFE, S, GHIGO, J.-M, WANDERSMAN, C

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Characterization of a protein inhibitor of extracellular proteases produced by Erwinia chrysanthemi by Létoffé, S, Delepelaire, P, Wandersman, C

“…Erwinia chrysanthemi, a phytopathogenic bacterium, produces a protease inhibitor which is a low-molecular-weight, heat-stable protein. In addition to its…”
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Iron Acquisition from Heme and Hemoglobin by a Serratia marcescens Extracellular Protein by Létoffé, S., Ghigo, J. M., Wandersman, C.

“…Several pathogenic bacteria are able to use heme and hemoproteins as iron sources independent of siderophore production by mechanisms involving outer membrane…”
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Secretion of the Serratia marcescens HasA protein by an ABC transporter by LETOFFE, S, GHIGO, J. M, WANDERSMAN, C

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Protein secretion by gram-negative bacterial ABC exporters by BINET, R, LETOFFE, S, GHIGO, J. M, DELEPELAIRE, P, WANDERSMAN, C

“…One of the strategies used by Gram-negative bacteria to secrete proteins across the two membranes which delimit the cells, is sec independent and dedicated to…”
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Secretion of CyaA-PrtB and HlyA-PrtB fusion proteins in Escherichia coli: involvement of the glycine-rich repeat domain of Erwinia chrysanthemi protease B by Letoffe, S. (Institut Pastuer, Paris, France), Wandersman, C

“…Protease B from Erwinia chrysanthemi was shown previously to have a C-terminal secretion signal locate downstream of a domain that contains six glycine-rich…”
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Involvement of lipopolysaccharide in the secretion of Escherichia coli alpha-haemolysin and Erwinia chrysanthemi proteases by Wandersman, C, Létoffé, S

“…The presence of the alpha-haemolysin secretion genes sensitizes Escherichia coli to vancomycin, a glycopeptide antibiotic that is normally excluded from the…”
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Cloning and expression in Escherichia coli of the Serratia marcescens metalloprotease gene: secretion of the protease from E. coli in the presence of the Erwinia chrysanthemi protease secretion functions by LETOFFE, S, DELEPELAIRE, P, WANDERSMAN, C

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