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Start Over Descriptor "Ions -- Physiological aspects" Publisher elsevier b.v.
1 results on '"Ions -- Physiological aspects"'

1. Mg2+ as an extracellular signal: environmental regulation of Salmonella virulence

Author

Vescovi, Eleonora Garcia, Groisman, Eduardo A., and Soncini, Fernando C.

Subjects
Magnesium -- Physiological aspects, Salmonella typhimurium -- Physiological aspects, Ions -- Physiological aspects, Biological sciences
Abstract

Magnesium ions were found to limit the ability of Salmonella typhimurium to defend itself against antimicrobial peptides such as defensin and magainin 2. The presence of magnesium ions disables a two-component protein that controls the expression of other proteins involved in cell defense. One component, the PhoQ protein, has a structure that extends outside the cytoplasm and which has been identified as the part that is altered upon contact with magnesium ions.

Published
1996

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