scholarly journals Ethylene Controls Autophosphorylation of the Histidine Kinase Domain in Ethylene Receptor ETR1

2008 ◽  
Vol 1 (2) ◽  
pp. 380-387 ◽  
Author(s):  
Jan Voet-van-Vormizeele ◽  
Georg Groth
Keyword(s):  
Histidine Kinase ◽  
Kinase Domain ◽  
Ethylene Receptor

Chimeric sensory kinases containing O2 sensor domain of FixL and histidine kinase domain from thermophile

2003 ◽  
Vol 1646 (1-2) ◽  
pp. 136-144 ◽  
Author(s):  
Hideyuki Kumita ◽  
Seiji Yamada ◽  
Hiro Nakamura ◽  
Yoshitsugu Shiro
Keyword(s):  
Histidine Kinase ◽  
Kinase Domain

scholarly journals PAS-mediated Dimerization of Soluble Guanylyl Cyclase Revealed by Signal Transduction Histidine Kinase Domain Crystal Structure

2007 ◽  
Vol 283 (2) ◽  
pp. 1167-1178 ◽  
Author(s):  
Xiaolei Ma ◽  
Nazish Sayed ◽  
Padmamalini Baskaran ◽  
Annie Beuve ◽  
Focco van den Akker
Keyword(s):  
Crystal Structure ◽  
Signal Transduction ◽  
Guanylyl Cyclase ◽  
Histidine Kinase ◽  
Soluble Guanylyl Cyclase ◽  
Kinase Domain

scholarly journals Evidence for Serine/Threonine and Histidine Kinase Activity in the Tobacco Ethylene Receptor Protein NTHK2

2004 ◽  
Vol 136 (2) ◽  
pp. 2971-2981 ◽  
Author(s):  
Zhi-Gang Zhang ◽  
Hua-Lin Zhou ◽  
Tao Chen ◽  
Yan Gong ◽  
Wan-Hong Cao ◽  
...  
Keyword(s):  
Histidine Kinase ◽  
Kinase Activity ◽  
Receptor Protein ◽  
Ethylene Receptor

Histidine kinase activity and the regulation of ethylene signal transduction

2005 ◽  
Vol 83 (6) ◽  
pp. 563-570 ◽  
Author(s):  
Michael G Mason ◽  
G Eric Schaller
Keyword(s):  
Signal Transduction ◽  
Plant Growth ◽  
Histidine Kinase ◽  
Kinase Activity ◽  
Ethylene Receptor ◽  
Serine Threonine Kinase ◽  
Two Component ◽  
Ethylene Signal Transduction ◽  
Ethylene Signal

Ethylene is a gaseous hormone that regulates many aspects of plant growth and development. Although the effect of ethylene on plant growth was discovered a century ago, the key players in the ethylene response pathway were only identified over the last 15 years. In Arabidopsis, ethylene is perceived by a family of five receptors (ETR1, ETR2, ERS1, ERS2, and EIN4) that resemble two-component histidine kinases. Of these, only ETR1 and ERS1 contain all the conserved residues required for histidine kinase activity. The ethylene receptors appear to function primarily through CTR1, a serine/threonine kinase that actively suppresses ethylene responses in air (absence of ethylene). Despite recent progress toward understanding ethylene signal transduction, the role of the ethylene-receptor histidine-kinase activity remains unclear. This review considers the significance of histidine kinase activity in ethylene signaling and possible mechanisms by which it may modulate ethylene responses.Key words: ethylene receptor, ETR1, histidine kinase, two-component, phosphorylation, Arabidopsis.

NMR structure of the histidine kinase domain of the E. coli osmosensor EnvZ

Nature ◽  
10.1038/23968 ◽  
1998 ◽  
Vol 396 (6706) ◽  
pp. 88-92 ◽  
Author(s):  
Toshiyuki Tanaka ◽  
Soumitra K. Saha ◽  
Chieri Tomomori ◽  
Rieko Ishima ◽  
Dingjiang Liu ◽  
...  
Keyword(s):  
Histidine Kinase ◽  
Kinase Domain ◽  
Nmr Structure ◽  
E Coli

Protein Kinase Domain of CTR1 from Arabidopsis thaliana Promotes Ethylene Receptor Cross Talk

2012 ◽  
Vol 415 (4) ◽  
pp. 768-779 ◽  
Author(s):  
Hubert Mayerhofer ◽  
Saravanan Panneerselvam ◽  
Jochen Mueller-Dieckmann
Keyword(s):  
Arabidopsis Thaliana ◽  
Protein Kinase ◽  
Cross Talk ◽  
Kinase Domain ◽  
Ethylene Receptor ◽  
Protein Kinase Domain ◽  
Receptor Cross Talk

scholarly journals Succinoglycan Production by Rhizobium meliloti Is Regulated through the ExoS-ChvI Two-Component Regulatory System

1998 ◽  
Vol 180 (1) ◽  
pp. 20-26 ◽  
Author(s):  
Hai-Ping Cheng ◽  
Graham C. Walker
Keyword(s):  
Histidine Kinase ◽  
Cytoplasmic Membrane ◽  
Rhizobium Meliloti ◽  
Response Regulator ◽  
Regulatory System ◽  
Kinase Domain ◽  
Cloning And Sequencing ◽  
System A ◽  
Two Component ◽  
Close Homolog

ABSTRACT The Rhizobium meliloti exoS gene is involved in regulating the production of succinoglycan, which plays a crucial role in the establishment of the symbiosis between R. melilotiRm1021 and its host plant, alfalfa. TheexoS96::Tn5 mutation causes the upregulation of the succinoglycan biosynthetic genes, thereby resulting in the overproduction of succinoglycan. Through cloning and sequencing, we found that the exoS gene is a close homolog of theAgrobacterium tumefaciens chvG gene, which has been proposed to encode the sensor protein of the ChvG-ChvI two-component regulatory system, a member of the EnvZ-OmpR family. Further analyses revealed the existence of a newly discovered A. tumefaciens chvI homolog located just upstream of the R. meliloti exoS gene. R. meliloti ChvI may serve as the response regulator of ExoS in a two-component regulatory system. By using ExoS-specific antibodies, it was found that the ExoS protein cofractionated with membrane proteins, suggesting that it is located in the cytoplasmic membrane. By using the same antibodies, it was shown that the exoS96::Tn5 allele encodes an N-terminal truncated derivative of ExoS. The cytoplasmic histidine kinase domain of ExoS was expressed in Escherichia coli and purified, as was the R. meliloti ChvI protein. The ChvI protein autophosphorylated in the presence of acetylphosphate, and the ExoS cytoplasmic domain fragment autophosphorylated at a histidine residue in the presence of ATP. The ChvI protein was phosphorylated in the presence of ATP only when the histidine kinase domain of ExoS was also present. We propose a model for regulation of succinoglycan production by R. meliloti through the ExoS-ChvI two-component regulatory system.

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