H. Ohayon

Publications47
h-index25
Citations4,141
Highly Influential Citations189
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Nucleotide sequence of the lecithinase operon of Listeria monocytogenes and possible role of lecithinase in cell-to-cell spread.
The lecithinase gene of the intracellular pathogen Listeria monocytogenes, plcB, was identified in a 5,648-bp DNA fragment which expressed lecithinase activity when cloned into Escherichia coli. This… Expand
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E-Cadherin Is the Receptor for Internalin, a Surface Protein Required for Entry of L. monocytogenes into Epithelial Cells
We report the first identification of a cellular receptor mediating entry of a gram-positive bacterium into nonphagocytotic cells. By an affinity chromatography approach, we identified E-cadherin as… Expand
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A comparative study of the actin-based motilities of the pathogenic bacteria Listeria monocytogenes, Shigella flexneri and Rickettsia conorii.
Listeria monocytogenes, Shigella flexneri, and Rickettsia conorii are three bacterial pathogens that are able to polymerize actin into 'comet tail' structures and move within the cytosol of infected… Expand
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Internalin of Listeria monocytogenes with an intact leucine-rich repeat region is sufficient to promote internalization.
Listeria monocytogenes can use two different surface proteins, internalin (InlA) and InlB, to invade mammalian cells. The exact role of these invasiveness factors in vivo remains to be determined. In… Expand
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CD44 binds to the Shigella IpaB protein and participates in bacterial invasion of epithelial cells
Shigella entry into epithelial cells is characterized by a transient reorganization of the host cell cytoskeleton at the site of bacterial interaction with the cell membrane, which leads to bacterial… Expand
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Acute inflammation causes epithelial invasion and mucosal destruction in experimental shigellosis
The gram-negative pathogen Shigella flexneri causes bacillary dysentery, an invasive disease of the human colonic mucosa. A major characteristic of the infectious process is the occurrence of an… Expand
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OlpB, a new outer layer protein of Clostridium thermocellum, and binding of its S-layer-like domains to components of the cell envelope.
Several proteins of Clostridium thermocellum possess a C-terminal triplicated sequence related to bacterial cell surface proteins. This sequence was named the SLH domain (for S-layer homology), and… Expand
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The secreted IpaB and IpaC invasins and their cytoplasmic chaperone IpgC are required for intercellular dissemination of Shigella flexneri
Invasion of epithelial cells by Shigella flexneri involves entry and dissemination. The main effectors of entry, IpaB and IpaC, are also required for contact haemolytic activity and escape from the… Expand
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Polarized distribution of Listeria monocytogenes surface protein ActA at the site of directional actin assembly.
The facultative intracellular pathogen Listeria monocytogenes can infect host tissues by using directional actin assembly to propel itself from one cell into another. The movement is generated by… Expand
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The InIB protein of Listeria monocytogenes is sufficient to promote entry into mammalian cells.
InIB is one of the two Listeria monocytogenes invasion proteins required for bacterial entry into mammalian cells. Entry into human epithelial cells such as Caco-2 requires InIA, whereas InIB is… Expand
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