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Updated: May 12, 2026

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In vivo and in vitro Studies of Adaptor-clathrin Interaction
Published on: January 27, 2011
AP-3アダプター複合体は,酵母真空球への貨物選択輸送に不可欠です
C R Cowles1, G Odorizzi, G S Payne
1Division of Cellular and Molecular Medicine and Howard Hughes Medical Institute, University of California, San Diego 92093-0668, USA.
Cell
|October 23, 1997
まとめ
酵母アダプタータンパク質-3 (AP-3) 複合体は,アルカリリンフォスファタゼのような特定のタンパク質を,ゴルギから真空細胞/リソソームに輸送するために不可欠です. この研究は,AP-3を明確にしています.
科学分野:
- 細胞生物学 細胞生物学
- 分子生物学は分子生物学である.
- タンパク質の密輸 タンパク質の密輸
背景:
- アダプタータンパク質 (AP) 複合体は,タンパク質の分類を調節する.
- AP-1とAP-2は,トランス・ゴルギネットワークとプラズマ膜で機能する.
- タンパク質輸送におけるAP-3の特定の役割は未定義のままでした.
研究 の 目的:
- タンパク質の密輸におけるAP-3複合体の機能を明らかにする.
- AP-3で運ばれた特定の貨物分子を特定するために.
- AP-3がアルカリリンリン酸塩酵素 (ALP) を真空細胞/リソソームに輸送する役割を調査する.
主な方法:
- 酵母における遺伝子スクリーニングは,ALP輸送に関与する要因を特定するために行われます.
- AP-3サブユニットおよび他のAP複合体の遺伝子消去研究.
- アルカリリンフォスファターゼ (ALP) と真空のt-SNAREを用いたタンパク質局所化の分析, Vam3p.
主要な成果:
- Ap16pとAp15pを含む酵母AP-3複合体は,ALP輸送因子のスクリーンで特定されました.
- AP-3サブユニットの削除により,ALPとVam3pの選択的誤局が引き起こされました.
- AP-1またはAP-2サブユニットの削除は,真空タンパク質配送に影響を与えませんでした.
結論:
- AP-3複合体は,荷物を選択するタンパク質輸送において重要な役割を果たします.
- AP-3は,特定のタンパク質をゴルギから真空球/リソソームに運ぶ仲介をします.
- この研究は,細胞タンパク質の分類におけるAP-3複合体の重要な機能を定義しています.
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