The PAS domain-containing histidine kinase RpfS is a second sensor for the diffusible signal factor of Xanthomonas campestris.

The PAS domain-containing histidine kinase RpfS is a second sensor for the diffusible signal factor of Xanthomonas campestris.
复制标题

DOI:
10.1111/mmi.12577
复制
发表时间:
2014-05
影响因子:
3.6
通讯作者:
Ryan RP
Ryan RP
中科院分区:
生物学2区
文献类型:
--
作者:
An SQ;Allan JH;McCarthy Y;Febrer M;Dow JM;Ryan RP

文献摘要

参考文献

被引文献

相似文献

由脂肪酸信号DSF介导的细胞-细胞信号系统控制野油菜黄单胞菌致病性。campestris(Xcc)对植物的抗性。DSF信号的合成和识别取决于不同的Rpf蛋白。DSF信号产生需要RpfF,而信号感知和转导取决于传感器RpfC和调节器RpfG。不同Rpf蛋白的调节作用的详细分析表明DSF的进一步传感器的发生。在这里,我们使用了诱变方法结合高分辨率转录分析来鉴定XC_2579(RpfS)作为Xcc中DSF的第二个传感器。RpfS是一种复杂的传感器激酶,预计具有多个Per/Arnt/Sim(PAS)结构域、一个组氨酸激酶结构域和一个C末端接收器(REC)结构域。等温量热法显示DSF与分离的N-末端PAS结构域结合,Kd为1.4 μM。RpfS控制的基因子集的表达与RpfC控制的基因子集不同,包括参与IV型分泌和趋化性的基因。当通过叶片喷雾而不是叶片接种测定时,XC_2579突变与Xcc对中国萝卜的毒力降低相关,表明RpfS控制因子在疾病周期的附生阶段中的作用。
A cell–cell signalling system mediated by the fatty acid signal DSF controls the virulence of Xanthomonas campestris pv. campestris (Xcc) to plants. The synthesis and recognition of the DSF signal depends upon different Rpf proteins. DSF signal generation requires RpfF whereas signal perception and transduction depends upon the sensor RpfC and regulator RpfG. Detailed analyses of the regulatory roles of different Rpf proteins have suggested the occurrence of further sensors for DSF. Here we have used a mutagenesis approach coupled with high‐resolution transcriptional analysis to identify XC_2579 (RpfS) as a second sensor for DSF in Xcc. RpfS is a complex sensor kinase predicted to have multiple Per/Arnt/Sim (PAS) domains, a histidine kinase domain and a C‐terminal receiver (REC) domain. Isothermal calorimetry showed that DSF bound to the isolated N‐terminal PAS domain with a Kd of 1.4 μM. RpfS controlled expression of a sub‐set of genes distinct from those controlled by RpfC to include genes involved in type IV secretion and chemotaxis. Mutation of XC_2579 was associated with a reduction in virulence of Xcc to Chinese Radish when assayed by leaf spraying but not by leaf inoculation, suggesting a role for RpfS‐controlled factors in the epiphytic phase of the disease cycle.
DOI: 10.1038/nbt.1621
发表时间: 2010-05
影响因子: 46.9
作者:
Trapnell C;Williams BA;Pertea G;Mortazavi A;Kwan G;van Baren MJ;Salzberg SL;Wold BJ;Pachter L
通讯作者: Pachter L
DOI: 10.1111/mmi.12000
发表时间: 2012-11-01
影响因子: 3.6
作者:
Ryan, Robert P.;McCarthy, Yvonne;Dow, J. Maxwell
通讯作者: Dow, J. Maxwell
DOI: 10.1073/pnas.0912839107
发表时间: 2010-03-30
影响因子: 11.1
作者:
Ryan, Robert P.;McCarthy, Yvonne;Dow, J. Maxwell
通讯作者: Dow, J. Maxwell
DOI: 10.1073/pnas.1205037109
发表时间: 2012-09-18
影响因子: 11.1
作者:
Deng, Yinyue;Schmid, Nadine;Zhang, Lian-Hui
通讯作者: Zhang, Lian-Hui
DOI: 10.1111/mmi.12229
发表时间: 2013-06
影响因子: 3.6
作者:
An SQ;Febrer M;McCarthy Y;Tang DJ;Clissold L;Kaithakottil G;Swarbreck D;Tang JL;Rogers J;Dow JM;Ryan RP
通讯作者: Ryan RP