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Role of hemolysin for the intracellular growth of Listeria monocytogenes.

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Portnoy, D A, Jacks, P S, Hinrichs, D J·1988·The Journal of experimental medicine

Abstract

Listeria monocytogenes insertion mutants defective in hemolysin production were generated using the conjugative transposons Tn916 and Tn1545. All of the nonhemolytic mutants (hly-) lacked a secreted 58-kD polypeptide, presumedly hemolysin, and were avirulent in a mouse model. An intracellular multiplication assay was established in monolayers of mouse bone marrow-derived macrophages, the J774 macrophage-like cell line, the CL.7 embryonic mouse fibroblast cell line, and the Henle 407 human epithelial cell line. The hly+ strain grew intracellularly in all of the tissue culture cells with a doubling time of approximately 60 min. In contrast, the hly- mutants failed to grow in the murine-derived tissue culture cells, but retained the ability to grow in the human tissue culture cells examined. Hemolytic-positive revertants were selected after passage of the hly- mutants through monolayers of J774 cells. In each case, the hemolytic revertants possessed the 58-kD polypeptide, were capable of intracellular growth in tissue culture monolayers and were virulent for mice.

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Metadata

Authors
Portnoy, D. A., Jacks, P. S., & Hinrichs, D. J.
Venue
The Journal of experimental medicine
Published
1988-04-01
Volume
167
Issue
4
Pages
1459-1471
ISSN
  • 0022-1007 (ISSN-L)
  • 1540-9538
OpenAlex
W2144014651
Cited by
871
References
1
FWCI
21.72
Type
journal article
Language
en
Open access
green

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CoChat. (2026). Citation check: Role of hemolysin for the intracellular growth of Listeria monocytogenes. https://app.cochat.ai/papers/10.1084/jem.167.4.1459
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Portnoy, D. A., Jacks, P. S., & Hinrichs, D. J. (1988). Role of hemolysin for the intracellular growth of Listeria monocytogenes. The Journal of experimental medicine. https://doi.org/10.1084/jem.167.4.1459

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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

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