Autoinducer-2-Producing Protein LuxS, a Novel Salt- and Chloride-Induced Protein in the Moderately Halophilic Bacterium Halobacillus halophilus
Autoinducer-2-Producing Protein LuxS, a Novel Salt- and Chloride-Induced Protein in the Moderately Halophilic Bacterium Halobacillus halophilus
复制标题
自诱导剂 2 产生蛋白 LuxS,中度嗜盐细菌嗜盐芽孢杆菌中的一种新型盐和氯诱导蛋白
DOI:
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发表时间:
2006
影响因子:
4.4
通讯作者:
V. Müller
中科院分区:
文献类型:
--
作者:
Xaver Sewald;Stephan H. Saum;P. Palm;F. Pfeiffer;D. Oesterhelt;V. Müller
ABSTRACT The moderately halophilic bacterium Halobacillus halophilus carries a homologue of LuxS, a protein involved in the activated methyl cycle and the production of autoinducer-2, which mediates quorum sensing between certain species. luxS of H. halophilus is part of an operon that encodes an S-adenosylmethionine-dependent methyltransferase, a cysteine synthase, and a β-cystathionine lyase. Expression of luxS was growth phase dependent, with maximal expression in the mid-exponential growth phase. In addition, transcription of luxS was strictly salt dependent; maximal mRNA concentrations were observed with 2.0 M NaCl in the growth medium. Chloride ions stimulated luxS transcription by a factor of three. Western blot analyses demonstrated a growth phase- and salinity-dependent production of LuxS. Moreover, cellular LuxS levels were strictly chloride dependent. Maximal accumulation of LuxS was observed at 0.5 to 1.0 M Cl− and depended on the salinity.
影响因子:
2.9
作者:
Ligler,FS;Bredehorst,R;Talebian,A;Shriver,LC;Hammer,CF;Sheridan,JP;Vogel,CW;Gaber,BP
通讯作者:
Gaber,BP
影响因子:
3.8
作者:
Daines, DA;Bothwell, M;Smith, AL
通讯作者:
Smith, AL