Time-resolved fluorescence studies on the internal motionof chlorophyll a of light-harvesting chlorophylla/b-protein complex in lipid membranes

Makio Furuichi, Etsuko Nishimoto, Toshiaki Koga, Shoji Yamashita

研究成果: ジャーナルへの寄稿学術誌査読

1 被引用数 (Scopus)

抄録

By analyzing the steady state and time-resolved fluorescence anisotropy, the internal motions of chlorophyll a of light-harvesting chlorophyll a/b-protein complex (LHCII) were characterized in a dimyristoylphosphatidylcholine (DMPC) liposome. Corresponding to the thermotropic phase of the membrane, chlorophyll a showed an unique internal motion in LHCII. At the gel phase, two motional components, one fast and the other slow, were observed, which would originate in the heterogeneity of the mutual orientation and the binding site of the chlorophyll a in LHCII. Interestingly, the faster motion was suppressed and only the slower segmental rotation with the larger motional amplitude was allowed on the phasetransition to a liquid crystalline phase.

本文言語英語
ページ(範囲)1623-1627
ページ数5
ジャーナルBioscience, Biotechnology and Biochemistry
64
8
DOI
出版ステータス出版済み - 2000
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • バイオテクノロジー
  • 分析化学
  • 生化学
  • 応用微生物学とバイオテクノロジー
  • 分子生物学
  • 有機化学

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