• 제목/요약/키워드: prolein crystallization

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X-ray Crystallographic Study of Archaerhodopsin

  • Enami, Nobuo;Okumura, Hideo;Kouyama, Tsutomu
    • Journal of Photoscience
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    • 제9권2호
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    • pp.320-322
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    • 2002
  • Archaerhodopsin (aR), a light-driven proton pump found in HaIonubrum sp. aus-l, was crystallized into an octahedral crystal belonging to the space group P4$_3$2$_1$2. It is shown that aR is composed of7 helical segments and an anti-para1leI ${\beta}$ sheet. The main-chain sIrudure of aR is nearly identical to that of bacteriorhodopsin, but a significant structural difference is observed in the protein surface, especially at lipid binding sites.

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