[细菌群体感应LuxR solo的进展]。

微生物学报 Pub Date : 2017-03-04
Xiaofeng Ye, Junli Zhu, Haifeng Wang
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引用次数: 0

摘要

群体感应(QS)参与了n -酰基高丝氨酸内酯(AHLs)的产生,是革兰氏阴性菌的一种普遍的交流方式。完整的AHL-QS系统包括对属于LuxI家族的AHLs合成酶和同源luxr家族的AHLs传感器调节器。然而,许多革兰氏阴性细菌已经证明存在与AHL-QS相关的luxr型基因,这些基因与同源LuxI不配对。这些没有配对的luxr被称为独奏家或孤儿。LuxR单链被认为对细菌在窃听、种内和界间通信中的信号感知具有重要作用,成为QS领域的研究课题。本文介绍了LuxR的发现、概念、蛋白质结构和主要类型。此外,本文还对LuxR基因的功能和与ahl或非ahl相关的重要蛋白进行了综述。讨论了群体感应LuxR solo在细菌中的应用前景和意义。
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[Advances in quorum-sensing LuxR solos in bacteria].

Quorum-sensing (QS) involved in the production of N-Acylhomoserine lactones (AHLs) is a universal way of communication of gram-negative bacteria. Complete AHL-QS system includes pairs of AHLs synthase belonging to LuxI family and cognate LuxR-family AHLs sensor-regulator. However, many gram-negative bacteria have evidenced the presence of AHL-QS related LuxR-type genes, which are unpaired to a cognate LuxI. These unpaired LuxRs have been called solos or orphans. LuxR solos are thought to be important for bacterial signal perception in eavesdropping, intra-species and inter-kingdom communication, which become research topic in the field of QS. Here, the finding, concept, protein structure, and main types of LuxR solos are illustrated. Furthermore, the function and important protein of LuxR solos associated with sensing AHLs or non-AHLs are reviewed. The prospect and significance of quorum sensing LuxR solos in bacteria are also discussed.

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来源期刊
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期刊介绍: Acta Microbiologica Sinica(AMS) is a peer-reviewed monthly (one volume per year)international journal,founded in 1953.It covers a wide range of topics in the areas of general and applied microbiology.The journal publishes original papers,reviews in microbiological science,and short communications describing unusual observations. Acta Microbiologica Sinica has been indexed in Index Copernicus (IC),Chemical Abstract (CA),Excerpt Medica Database (EMBASE),AJ of Viniti (Russia),Biological Abstracts (BA),Chinese Science Citation Database (CSCD),China National Knowledge Infrastructure(CNKI),Institute of Scientific and Technical Information of China(ISTIC),Chinese Journal Citation Report(CJCR),Chinese Biological Abstracts,Chinese Pharmaceutical Abstracts,Chinese Medical Abstracts and Chinese Science Abstracts.
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