Mutational Analysis of the Histidine-containing Phosphotransfer (HPt) Signaling Domain of the ArcB Sensor in Escherichia coli

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概要

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• The Escherichia coli ArcB sensor is involved in anaerobic phosphotransfer signal transduction. ArcB is a hybrid sensor that contains three types of phosphotransfer signaling domains in its primary amino acid sequence, namely, transmitter (or His-kinase), receiver, and histidine-containing phosphotransfer (HPt) domains. However, examination of the function of the newly-discovered HPt domain (named ArcB^C) is still at a very early stage. To gain a general insight into the structure and function of the widespread HPt domains, on the basis of its three-dimensional crystal structure, in this study we constructed a certain set of mutants each having a single amino acid substitution in the HPt domain of ArcB. These ArcB^C mutants were characterized and evaluated, based on the in vivo ability to signal the OmpR receiver via trans-phosphorylation.

• 社団法人日本農芸化学会の論文
• 1998-11-23

著者

• Mizuno Takeshi

  Laboratory Of Molecular Microbiology School Of Agriculture Nagoya University

• Matsushika Akinori

  Laboratory Of Molecular Microbiology School Of Agriculture Nagoya University

• Matsushika A

  Nagoya Univ. Nagoya Jpn

• Mizuno Takeshi

  Laboratory Of Microbiology School Of Agriculture Nagoya University

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