Isolation and molecular characterization of the locked-on mutant of Mg2+ sensor PhoQ in Escherichia coli

A Mg**2+ sensor mutant (PhoQD179L(A)) in which D179 of PhoQ was changed into L or A was isolated and characterized in Escherickia coli. PhoQ-PhoP regulon genes, phoPQ, mgtA and mgrB transcriptions were repressed at a high Mg**2+ concentration in WQ3007 (phoQ-defective strain)/pHO119, but not in WQ30...

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Veröffentlicht in:	Bioscience, biotechnology, and biochemistry biotechnology, and biochemistry, 2005-07, Vol.69 (7), p.1281-1287
Hauptverfasser:	Minagawa, S. (Kinki Univ., Higashiosaka, Osaka (Japan)), Okura, R, Tsuchitani, H, Hirao, K, Yamamoto, K, Utsumi, R
Format:	Artikel
Sprache:	eng
Schlagworte:	Amino Acid Sequence Bacterial Proteins - genetics Bacterial Proteins - metabolism Biological and medical sciences Cell Membrane - drug effects Cell Membrane - metabolism Dose-Response Relationship, Drug ESCHERICHIA COLI Escherichia coli - drug effects Escherichia coli - genetics Escherichia coli - metabolism Escherichia coli Proteins - genetics Escherichia coli Proteins - metabolism Fundamental and applied biological sciences. Psychology Gene Expression Regulation, Bacterial - drug effects GENES HISTIDINE ISOLATION locked-on mutant MAGNESIUM Magnesium - pharmacology MEMBRANES Molecular Sequence Data MUTANTS Mutation NUCLEOTIDE SEQUENCE PhoQ-PhoP Phosphorylation - drug effects sensor SENSORS Sequence Homology, Amino Acid two-component signal transduction system
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