Nutritional immunity: transition metals at the pathogen-host interface.
Nutritional immunity: transition metals at the pathogen-host interface.
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DOI:
10.1038/nrmicro2836
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发表时间:
2012-07-16
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影响因子:
--
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Transition metals occupy an essential niche in biological systems. Their electrostatic properties stabilize substrates or reaction intermediates in the active sites of enzymes, while their heightened reactivity is harnessed for catalysis. However, the latter property renders transition metals toxic at high concentrations. Bacteria, like all living organisms, must regulate the levels of these elements to satisfy their physiological needs while avoiding harm. It is therefore not surprising that the host capitalizes on both the essentiality and toxicity of transition metals to defend against bacterial invaders. This review will discuss established and emerging paradigms in nutrient metal homeostasis at the pathogen-host interface.
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