Heterogeneity in Regeneration of Bacteriorhodopsin from Bacterio-Opsin and All-trans Retinal at High Temperatures : Implications for Dynamic Structural Fluctuations

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Measurements of regeneration kinetics were performed in order to investigate the regeneration mechanisms of bacteriorhodopsin (bR) from thermally unfolded bacterio-opsin (bO) and all-<I>trans</I> retinal. Regeneration kinetics data were successfully fitted to a single exponential function when regeneration was performed at 25 °C after incubation at high temperatures. Conversely, the process of regeneration after the addition of retinal to bO at high temperatures occurred at two different rate constants. These findings strongly suggest that the slower regeneration of bR at high temperatures occurs as a result of dynamic structural fluctuation of bO, whereas the faster process corresponds to regeneration from bO, which retains a native structure capable of retinal binding.

収録刊行物

  • Bioscience, biotechnology, and biochemistry

    Bioscience, biotechnology, and biochemistry 70(6), 1350-1355, 2006-06-23

    Japan Society for Bioscience, Biotechnology, and Agrochemistry

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各種コード

  • NII論文ID(NAID)
    10018529921
  • NII書誌ID(NCID)
    AA10824164
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09168451
  • NDL 記事登録ID
    7958816
  • NDL 雑誌分類
    ZR7(科学技術--農林水産--農産) // ZR2(科学技術--生物学--生化学) // ZP1(科学技術--化学・化学工業)
  • NDL 請求記号
    Z53-G223
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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