Chemotaxis proteins and transducers for aerotaxis in Pseudomonas aeruginosa
FEMS microbiology letters 231 巻 2 号
247-252 頁
2004-02 発行
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種類 :
全文
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タイトル ( eng ) |
Chemotaxis proteins and transducers for aerotaxis in Pseudomonas aeruginosa
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作成者 |
Hong Chang Soo
Shitashiro Maiko
Ikeda Tsukasa
Takiguchi Noboru
Ohtake Hisao
Kato Junichi
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収録物名 |
FEMS microbiology letters
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巻 | 231 |
号 | 2 |
開始ページ | 247 |
終了ページ | 252 |
抄録 |
It was previously shown that the chemotaxis gene cluster 1 (cheYZABW) was required for chemotaxis. In this study, the involvement of the same cluster in aerotaxis is described and two transducer genes for aerotaxis are identified. Aerotaxis assays of a number of deletion–insertion mutants of Pseudomonas aeruginosa PAO1 revealed that the chemotaxis gene cluster 1 and cheR are required for aerotaxis. Mutant strains which contained deletions in the methyl-accepting chemotaxis protein-like genes tlpC and tlpG showed decreased aerotaxis. A double mutant deficient in tlpC and tlpG was negative for aerotaxis. TlpC has 45 0x1.e0b6p-891mino acid identity with the Escherichia coli aerotactic transducer Aer. The TlpG protein has a predicted C-terminal segment with 89 0dentity to the highly conserved domain of the E. coli serine chemoreceptor Tsr. A hydropathy plot of TlpG indicated that hydrophobic membrane-spanning regions are missing in TlpG. A PAS motif was found in the N-terminal domains of TlpC and TlpG. On this basis, the tlpC and tlpG genes were renamed aer and aer-2, respectively. No significant homology other than the PAS motif was detected in the N-terminal domains between Aer and Aer-2.
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著者キーワード |
Aerotaxis
Pseudomonas aeruginosa
Chemotaxis
Behavioral response
Transducer
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NDC分類 |
生物科学・一般生物学 [ 460 ]
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言語 |
英語
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資源タイプ | 学術雑誌論文 |
出版者 |
Elsevier Science B.V.
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発行日 | 2004-02 |
権利情報 |
Copyright (c) 2004 Federation of European Microbiological Societies.
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出版タイプ | Author’s Original(十分な品質であるとして、著者から正式な査読に提出される版) |
アクセス権 | オープンアクセス |
収録物識別子 |
[ISSN] 0378-1097
[DOI] 10.1016/S0378-1097(04)00009-6
[PMID] 14987771
[DOI] http://dx.doi.org/10.1016/S0378-1097(04)00009-6
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