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Export of Misfolded Proteins out of the ER01:32

Export of Misfolded Proteins out of the ER

After folding, the ER assesses the quality of secretory and membrane proteins. The correctly folded proteins are cleared by the calnexin cycle for transport to their final destination, while misfolded proteins are held back in the ER lumen. The ER chaperones attempt to unfold and refold the misfolded proteins but sometimes fail to achieve the correct native conformation. Such terminally misfolded proteins are then exported to the cytosol by ER-associated degradation or ERAD pathway for...
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ヘラパテ族はヘラパテ族であった.

Bart Kahr1, John Freudenthal, Shane Phillips

  • 1Department of Chemistry, Box 351700, University of Washington, Seattle, WA 98195-1700, USA. bart.kahr@nyu.edu

Science (New York, N.Y.)
|June 13, 2009
PubMed
まとめ
この要約は機械生成です。

初期の光極化器の重要な材料であるヘラパタイトの結晶構造が最終的に決定されました. この画期的な発見は,光の操作メカニズムを明らかにし,そのユニークな光学特性を説明します.

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Superior Auto-Identification of Trypanosome Parasites by Using a Hybrid Deep-Learning Model
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科学分野:

  • クリスタログラフィーです.
  • オプティクスは光学です.
  • 材料科学 材料科学とは

背景:

  • 偶然に発見されたヘラパタイト結晶は,極化特性で認められた.
  • 初期の応用により,ポラロイド光の偏光器の開発が始まりました.
  • ヘラパタイトの結晶構造と光学メカニズムは,1世紀以上にわたって不明のままでした.

研究 の 目的:

  • ヘラパタイトの単一結晶構造を決定するために.
  • 染色体とその二重化に起因する染色体とメカニズムを解明する.
  • この歴史的に重要な結晶の基本的な働きを理解するために.

主な方法:

  • 単一結晶X線 difraktionを用いて,原子の配列を決定した.
  • 染色体を特定するために,光譜分析を用いた.
  • 電子構造と光学特性をモデル化するために,計算方法が利用されました.

主要な成果:

  • ヘラパタイトの完全な結晶構造が決定されました.
  • ダイクロイズムは,特定のヨウ素鎖 (...I3-...I3-...) 沿いの非局所化された電子刺激に起因した.
  • ヘラパタイトの光学メカニズムに関する長年の謎が解明されました.

結論:

  • 確立された結晶構造は,ヘラパタイトの光学的振る舞いを理解するための基礎を提供します.
  • 染色体と興奮メカニズムの識別は,偏光剤としての機能を明確にします.
  • この研究は,最も成功した偶然工学による結晶の裏にある原理を最終的に説明しています.