細胞のタンパク質レベルがmRNAの豊富さに依存していること
Yansheng Liu1, Andreas Beyer2, Ruedi Aebersold3
1Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, 8093 Zurich, Switzerland.
Cell
|April 23, 2016
まとめ
遺伝子発現を理解するには mRNAを測定するだけでは不十分です タンパク質とmRNAのレベルは複雑で,特にダイナミックな変化の間,遺伝子型とフェノタイプをリンクするために包括的な遺伝子発現データが必要であることを強調しています.
科学分野:
- 分子生物学
- ゲノミクス
- システム生物学
背景:
- 遺伝子発現は,ゲノム情報を細胞機能と観察可能な特徴 (フェノタイプ) に結びつける.
- トランスクリプトミックとプロテオミックプロファイリングは,遺伝子発現を研究するための重要な方法である.
- mRNAとタンパク質のレベルとの関係を理解することは,生物学的研究にとって極めて重要です.
研究 の 目的:
- メッセンジャーRNA (mRNA) とタンパク質レベルとの複雑な関係を見直す.
- この関係が異なる生物学的状態 (安定状態,適応,移行) でどのように変化するか探求する.
- 生物学的過程を理解するために多層次遺伝子発現データの必要性を強調する.
主な方法:
- トランスクリプトミックとプロテオミックの研究の文献レビュー.
- ダイナミックな生物学的移行中の遺伝子発現調節の分析.
- mRNA-タンパク質相関に影響を与える要因の検討.
主要な成果:
- mRNAとタンパク質のレベルとの相関は複雑で文脈に依存しています.
- 空間的および時間的なmRNAの変動,およびタンパク質合成のための資源の利用は,タンパク質レベルに影響を与えます.
- mRNAの変動はタンパク質レベルで緩衝することができます.
結論:
- 多くの生物学的シナリオでタンパク質レベルを予測するには,トランスクリプトレベルだけでは不十分です.
- ゲノタイプとフェノタイプの関係を正確に予測するには,高品質で多層の遺伝子発現データが必要です.
- 生物学の完全な理解のために,遺伝子発現の包括的な定量化が不可欠です.
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