Evolutionary characteristics of bacterial two-component systems.
Evolutionary characteristics of bacterial two-component systems.
复制标题
细菌双组分系统的进化特征。
DOI:
10.1007/978-1-4614-3567-9_6
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发表时间:
2012
影响因子:
--
通讯作者:
Sheng X
中科院分区:
文献类型:
--
作者:
Sheng X
The evolution of biological systems is influenced by a number of factors and forces that have acted in different combinations at different times to give rise to extant organisms. Here we illustrate some of the issues surrounding the data-driven evolutionary analysis of biological systems in the context of bacterial two-component systems (TCSs). TCSs are critical for bacteria to interact with their extracellular environment. A typical TCS consists of a histidine kinase on the membrane and a response regulator in the cytoplasm. Here we comprehensively characterise the extent to which these appear together across some 950 bacterial species and test for statistically significant patterns of correlated gain and loss. Our analysis provides evidence for correlated evolution but also a high level of evolutionary flexibility: at the sequence level, histidine kinases but especially response regulators belonging to different TCSs in a species show high levels of similarity, which may facilitate crosstalk as well as the recruitment of components into new compound signalling systems. We furthermore find that bacterial lifestyle has an overriding influence on the presence and absence of TCS; while in most TCSs either both or none of the two components are present, several TCSs tend to lose preferentially either the histidine kinase or response regulator component, which further supports the notion of reuse and reshuffling of these components in different TCS arrangements. We conclude by placing these findings in a wider context and discuss the implications for evolutionary systems biology more generally.
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DOI:
10.1016/j.tig.2004.06.002
发表时间:
2004
期刊:
Trends in genetics : TIG
影响因子:
--
作者:
D. Tautz;M. Lässig
通讯作者:
M. Lässig
影响因子:
10.7
作者:
Drummond, DA;Raval, A;Wilke, CO
通讯作者:
Wilke, CO
影响因子:
3.2
作者:
Tomenius, H;Pernestig, AK;Melefors, Ö
通讯作者:
Melefors, Ö
影响因子:
3
作者:
Wistrand M;Sonnhammer EL
通讯作者:
Sonnhammer EL
DOI:
10.1002/0471721204.ch13
发表时间:
2005
期刊:
Methods of biochemical analysis
影响因子:
--
作者:
C. Orengo;Frances M. G. Pearl;Janet M. Thornton
通讯作者:
Janet M. Thornton