独立に進化した毒性のエフェクターは,植物免疫系ネットワークのハブに収束する
M Shahid Mukhtar1, Anne-Ruxandra Carvunis, Matija Dreze
1Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA.
まとめ
植物病原体は,高度に繋がっている宿主タンパク質を標的とした多様な毒性タンパク質を使用し,異なる王国における植物免疫を操作するための保存された戦略を明らかにします.
科学分野:
- 植物病理学 植物病理学
- 分子生物学は分子生物学である.
- 免疫学 免疫学とは
背景:
- 植物は病原体の分子を認識することで病原体から防御します.
- 病原体は,宿主細胞にエフェクタータンパク質を注入し,防御を妨害する.
- 効果因子と宿主との相互作用を理解することは,植物免疫の鍵です.
研究 の 目的:
- 植物病原菌エフェクターと宿主タンパク質の相互作用ネットワークを調査する.
- 病原体が植物免疫を操作するために使用する保存された戦略を特定する.
- 病原菌エフェクターと相互作用する宿主タンパク質の役割を明らかにする.
主な方法:
- 2つの病原体 (eukaryoteとeubacteria) のエフェクターを含む相互作用ネットワークの構築.
- アラビドプシスの免疫タンパク質の3つのクラスと8000のアラビドプシスのタンパク質に関するデータの統合.
- エフェクタと相互作用する宿主タンパク質のための植物免疫系機能の実験的検証.
主要な成果:
- 病原菌エフェクターは,高度に相互接続された宿主タンパク質 (ハブ) に収束する.
- エフェクタと植物免疫受容体とのつながりは,主に間接的である.
- エフェクタと相互作用する17のテストされた宿主タンパク質のうち15は,植物免疫機能を示した.
結論:
- 異なる王国の病原体は,限られた重要な宿主タンパク質ハブを標的として独立して進化した.
- この保存された戦略は,病原体のライフサイクル進行と免疫逃避を促進します.
- 高度に接続されたセルラーハブをターゲットにすることは,植物-病原体相互作用における一般的な毒性の戦略を表しています.
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