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Evolution of prokaryotic two-component system signaling pathways : Gene fusions and fissions
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Cock, Peter J. A. and Whitworth, David E. (2007) Evolution of prokaryotic two-component system signaling pathways : Gene fusions and fissions. Molecular Biology and Evolution, Volume 24 (Number 11). pp. 2355-2357. doi:10.1093/molbev/msm170
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Official URL: http://dx.doi.org/10.1093/molbev/msm170
Abstract
Two-component systems (TCSs) are common signal transduction systems, typically comprising paired histidine protein kinase (HK) and response regulator (RR) proteins. In many examples, it appears RR and HK genes have fused, producing a "hybrid kinase" We have characterized a set of prokaryotic genes encoding RRs, HKs, and hybrid kinases, enabling characterization of gene fusion and fission. Primary factors correlating with fusion rates are the presence of transmembrane helices in HKs and the presence of DNA-binding domains in RRs, features that require correct (and separate) spatial location. In the absence of such features, there is a relative abundance of fused genes. The order of paired HK and RR genes and the nucleotide distance between encoded domains also correlate with apparent gene fusion rates. We propose that localization requirements and relative positioning of encoded domains within TCS genes affect the function (and therefore retention) of hybrid kinases resulting from gene fusion.
Item Type: | Journal Item | ||||
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Subjects: | Q Science > QD Chemistry Q Science > QH Natural history > QH301 Biology Q Science > QH Natural history > QH426 Genetics |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Life Sciences (2010- ) > Biological Sciences ( -2010) | ||||
Journal or Publication Title: | Molecular Biology and Evolution | ||||
Publisher: | Oxford University Press | ||||
ISSN: | 0737-4038 | ||||
Official Date: | 2007 | ||||
Dates: |
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Volume: | Volume 24 | ||||
Number: | Number 11 | ||||
Number of Pages: | 3 | ||||
Page Range: | pp. 2355-2357 | ||||
DOI: | 10.1093/molbev/msm170 | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Access rights to Published version: | Restricted or Subscription Access |
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