Employing aromatic tuning to modulate output from two-component signaling circuits.

Employing aromatic tuning to modulate output from two-component signaling circuits.
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DOI:
10.1186/s13036-015-0003-2
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发表时间:
2015
影响因子:
5.6
通讯作者:
Draheim RR
Draheim RR
中科院分区:
生物学2区
文献类型:
--
作者:
Yusuf R;Draheim RR

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双组分信号电路 (TCS) 控制着细菌进行的大多数环境、致病和工业过程。因此,以与刺激无关的方式控制这些电路的信号输出对于合成微生物学家来说至关重要。芳香调节或重新定位常见于最终 TM 螺旋细胞质末端的芳香残基已被证明可以调节大肠杆菌天冬氨酸化学感受器 (Tar) 和主要渗透传感器 (EnvZ) 的信号输出。在其他细菌跨膜受体内的类似位置也发现了芳香族残基,这表明芳香调节可以用于广泛的应用。在此,简要介绍了支撑芳香调节的数据、该方法的初步成功以及相对于以前用于调制 TCS 信号输出的方法的固有优势。
Two-component signaling circuits (TCSs) govern the majority of environmental, pathogenic and industrial processes undertaken by bacteria. Therefore, controlling signal output from these circuits in a stimulus-independent manner is of central importance to synthetic microbiologists. Aromatic tuning, or repositioning the aromatic residues commonly found at the cytoplasmic end of the final TM helix has been shown to modulate signal output from the aspartate chemoreceptor (Tar) and the major osmosensor (EnvZ) of Escherichia coli. Aromatic residues are found in a similar location within other bacterial membrane-spanning receptors, suggesting that aromatic tuning could be harnessed for a wide-range of applications. Here, a brief synopsis of the data underpinning aromatic tuning, the initial successes with the method and the inherent advantages over those previously employed for modulating TCS signal output are presented.
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