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マウスとヒトにおける複合転写調節のアトラス
Timothy Ravasi1, Harukazu Suzuki, Carlo Vittorio Cannistraci
1The FANTOM Consortium, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA.
Cell
|March 10, 2010
まとめ
この研究では,ヒトとマウスの転写因子 (TF) 相互作用をマッピングし,遺伝子調節と細胞運命を決定する重要な保存されたネットワークを明らかにしました. キーTFの組み合わせは,組織特有の発現と発達をガイドし,進化の洞察を提供します.
科学分野:
- 分子生物学は分子生物学である.
- ゲノミクスゲノミクスとは
- 発達生物学 発達生物学とは
背景:
- 転写因子 (TFs) は,組み合わせ相互作用を通じて遺伝子発現をオーケストラする.
- これらの相互作用を理解することは,組織特異的な遺伝子調節と細胞の分化を解読するために不可欠です.
研究 の 目的:
- 人間とマウスのDNA結合TFsの間の物理的な相互作用の包括的なネットワークを構築する.
- グローバルなTFの相互作用の状況を分析し,保護された規制メカニズムを特定する.
主な方法:
- 大規模なスクリーニングで,ヒトとマウスのDNAを結合するTFsの大多数との物理的な相互作用を検出した.
- ネットワーク分析により,高度に接続されたTFと保存された相互作用を特定します.
主要な成果:
- 762人の人間と877人のマウスとの相互作用でTFインタラクションネットワークを生成しました.
- 高度な接続性を持つTFは,幅広い組織表現を示すことがわかりました.
- 種間のTF相互作用の測定の約半分の保存が観察されました.
- 免疫系の発達に関与する特定のSMAD3/FLI1複合体を特定しました.
結論:
- TF結合ネットワークは,細胞運命を決定し,組織差別化に不可欠です.
- 生成されたTF相互作用データは,遺伝子調節,発育,進化を研究するための貴重なリソースを提供します.
- 保存されたTF相互作用は,哺乳類の種間の基本的な規制原則を強調しています.
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