Diversity in (p)ppGpp metabolism and effectors.

Diversity in (p)ppGpp metabolism and effectors.
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DOI:
10.1016/j.mib.2015.01.012
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发表时间:
2015-04
影响因子:
5.4
通讯作者:
Wang JD
Wang JD
中科院分区:
生物学2区
文献类型:
--
作者:
Liu K;Bittner AN;Wang JD

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细菌产生鸟苷四磷酸和五磷酸,统称为(p)ppGpp,以响应各种环境刺激。这两种非凡的分子调节许多细胞过程,包括中心法则过程和代谢,以确保生存和适应。在大肠杆菌中的工作为理解(p)ppGpp的分子细节及其细胞功能奠定了基础。随着最近的研究扩展到其他物种,很明显,不仅在(p)ppGpp代谢方面,而且在其作用机制方面存在相当大的差异。从进化的角度来看,这种多样化是一个优雅的例子,说明不同的物种如何适应特定的调节网络,以适应其不同的生活方式。
Bacteria produce guanosine tetraphosphate and pentaphosphate, collectively named (p)ppGpp, in response to a variety of environmental stimuli. These two remarkable molecules regulate many cellular processes, including the central dogma processes and metabolism, to ensure survival and adaptation. Work in Escherichia coli laid the foundation for understanding the molecular details of (p)ppGpp and its cellular functions. As recent studies expand to other species, it is apparent that there exists considerable variation, with respect to not only (p)ppGpp metabolism, but also to its mechanism of action. From an evolutionary standpoint, this diversification is an elegant example of how different species adapt a particular regulatory network to their diverse lifestyles.
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