Related ArticlesNMR structure of the histidine kinase domain of the E. coli osmosensor EnvZ.
Nature. 1998 Nov 5;396(6706):88-92
Authors: Tanaka T, Saha SK, Tomomori C, Ishima R, Liu D, Tong KI, Park H, Dutta R, Qin L, Swindells MB, Yamazaki T, Ono AM, Kainosho M, Inouye M, Ikura M
Bacteria live in capricious environments, in which they must continuously sense external conditions in order to adjust their shape, motility and physiology. The histidine-aspartate phosphorelay signal-transduction system (also known as the two-component system) is important in cellular adaptation to environmental changes in both prokaryotes and lower eukaryotes. In this system, protein histidine kinases function as sensors and signal transducers. The Escherichia coli osmosensor, EnvZ, is a transmembrane protein with histidine kinase activity in its cytoplasmic region. The cytoplasmic region contains two functional domains: domain A (residues 223-289) contains the conserved histidine residue (H243), a site of autophosphorylation as well as transphosphorylation to the conserved D55 residue of response regulator OmpR, whereas domain B (residues 290-450) encloses several highly conserved regions (G1, G2, F and N boxes) and is able to phosphorylate H243. Here we present the solution structure of domain B, the catalytic core of EnvZ. This core has a novel protein kinase structure, distinct from the serine/threonine/tyrosine kinase fold, with unanticipated similarities to both heatshock protein 90 and DNA gyrase B.
The structure and dynamic properties of the complete histidine phosphotransfer domain of the chemotaxis specific histidine autokinase CheA from Thermotoga maritima
The structure and dynamic properties of the complete histidine phosphotransfer domain of the chemotaxis specific histidine autokinase CheA from Thermotoga maritima
Abstract The bacterial histidine autokinase CheA contains a histidine phosphotransfer (Hpt) domain that accepts a phosphate from the catalytic domain and donates the phosphate to either target response regulator protein, CheY or CheB. The Hpt domain forms a helix-bundle structure with a conserved four-helix bundle motif and a variable fifth helix. Observation of two nearly equally populated conformations in the crystal...
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Proc Natl Acad Sci U S A. 2003 Sep 30;100(20):11261-6
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Authors: Tugarinov V, Shapiro YE, Liang Z, Freed JH, Meirovitch E
Adenylate kinase from Escherichia coli (AKeco), consisting of a single 23.6 kDa polypeptide chain folded into domains CORE, AMPbd and LID, catalyzes the reaction AMP+ATP-->2ADP. In the...
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Nat Struct Biol. 1998 May;5(5):393-9
Authors: Briercheck DM, Wood TC, Allison TJ, Richardson JP, Rule GS
Rho protein is an essential hexameric RNA-DNA helicase that binds nascent mRNA transcripts and terminates transcription in a wide variety of eubacterial species. The NMR solution structure of the RNA binding...
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Biochemistry. 1997 Sep 2;36(35):10709-17
Authors: Xu RX, Pawelczyk T, Xia TH, Brown SC
Classical protein kinase C (PKC) family members are activated by the binding of various ligands to one of several cysteine-rich...
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[NMR paper] NMR structure of the J-domain and the Gly/Phe-rich region of the Escherichia coli Dna
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J Mol Biol. 1996 Jul 12;260(2):236-50
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Multidimensional heteronuclear NMR techniques were applied to study the phosphotransfer domain,...
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Biochemistry. 1990 Aug 14;29(32):7459-67
Authors: Vetter IR, Reinstein J, Rösch P
One- and two-dimensional nuclear magnetic resonance (NMR) studies, in particular substrate--protein nuclear Overhauser effect (NOESY) measurements, as well as nucleotide and P1,P5-bis-(5'-adenosyl) pentaphosphate...
NMR structure of the histidine kinase domain of the E. coli osmosensor EnvZ.
Linear Mode
