Characterization of CetA and CetB, a bipartite energy taxis system in Campylobacter jejuni.
Characterization of CetA and CetB, a bipartite energy taxis system in Campylobacter jejuni.
复制标题
CetA 和 CetB(空肠弯曲杆菌中的双向能量趋向系统)的表征。
DOI:
10.1111/j.1365-2958.2008.06357.x
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发表时间:
2008-09
影响因子:
3.6
通讯作者:
Dirita VJ
中科院分区:
文献类型:
--
作者:
Elliott KT;Dirita VJ
The energy taxis receptor Aer, in Escherichia coli, senses changes in the redox state of the electron transport system via an flavin adenine dinucleotide cofactor bound to a PAS domain. The PAS domain (a sensory domain named after three proteins Per, ARNT and Sim, where it was first identified) is thought to interact directly with the Aer HAMP domain to transmit this signal to the highly conserved domain (HCD) found in chemotaxis receptors. An apparent energy taxis system in Campylobacter jejuni is composed of two proteins, CetA and CetB, that have the domains of Aer divided between them. CetB has a PAS domain, while CetA has a predicted transmembrane region, HAMP domain and the HCD. In this study, we examined the expression of cetA and cetB and the biochemical properties of the proteins they encode. cetA and cetB are co-transcribed independently of the flagellar regulon. CetA has two transmembrane helices in a helical hairpin while CetB is a peripheral membrane protein tightly associated with the membrane. CetB levels are CetA dependent. Additionally, we demonstrated that both CetA and CetB participate in complexes, including a likely CetB dimer and a complex that may include both CetA and CetB. This study provides a foundation for further characterization of signal transduction mechanisms within CetA/CetB.
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影响因子:
5.6
作者:
Monné, M;Hermansson, M;von Heijne, G
通讯作者:
von Heijne, G
影响因子:
2.1
作者:
Aravind, L;Ponting, CP
通讯作者:
Ponting, CP
影响因子:
5.6
作者:
Monné, M;Nilsson, I;von Heijne, G
通讯作者:
von Heijne, G
影响因子:
3.6
作者:
Hendrixson, DR;DiRita, VJ
通讯作者:
DiRita, VJ
DOI:
10.1073/pnas.76.4.1648
发表时间:
1979-01-01
影响因子:
11.1
作者:
FIGURSKI, DH;HELINSKI, DR
通讯作者:
HELINSKI, DR