Peptide signaling in the staphylococci.
Peptide signaling in the staphylococci.
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DOI:
10.1021/cr100370n
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发表时间:
2011-01-12
期刊:
影响因子:
62.1
通讯作者:
Horswill, Alexander R.
中科院分区:
文献类型:
--
作者:
Thoendel, Matthew;Kavanaugh, Jeffrey S.;Flack, Caralyn E.;Horswill, Alexander R.
Gram-negative and Gram-positive bacteria have evolved elaborate machinery to biosynthesize and respond to diverse small-molecule signals. As bacteria grow, these signals accumulate in the extracellular environment until a particular concentration is reached, usually at a specific cell density or “quorum”, activating a regulatory cascade that controls some type of cellular process. This phenomenon is generally referred to as “quorum-sensing” and has been the subject of many excellent review articles. 1-3 The general paradigm is that Gram-negatives recognize small chemical compounds called N-acyl homoserine lactones that are membrane permeable and bind to a cytoplasmic receptor in order to exert a regulatory output. In contrast, the Gram-positives recognize peptides with diverse post-translational modifications using either a membrane-bound histidine kinase or cytoplasmic receptors.
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