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Chromatin Immunoprecipitation ChIP using Drosophila tissue
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ポリー ((ADP-リボシル) 化は,ドロソフィラ菌の断熱器機能と染色体内相互作用を調節する
Chin-Tong Ong1, Kevin Van Bortle, Edward Ramos
1Department of Biology, Emory University, 1510 Clifton Road NE, Atlanta, GA 30322, USA.
Cell
|September 24, 2013
まとめ
ポリ ((ADP-リボシル) 化により,ドロソフィラの分離タンパク質が変化し,ゲノム組織におけるその機能に影響を与えます. この改変は,エンハンサー・プロモーターの相互作用と,ゲノムの3次元構造の維持に不可欠です.
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
- エピジェネティクス エピジェネティクス
背景:
- 断熱剤はゲノム構造の重要な調節体であり,DNAの接触を媒介する.
- 断熱器の活動とゲノムの3D組織を制御するメカニズムは完全に理解されていません.
研究 の 目的:
- ドロソフィラの断熱器機能の調節におけるポリアドプリボシル化 (poly-ADP-ribosyl) の役割を調査する.
- ポリアドプリボシル化が3次元的なゲノム組織にどのように影響するか解明する.
主な方法:
- ドロソフィラのポリー ((ADP-リボース) ポリメラーゼ (Parp) 遺伝子の変異.
- 断熱タンパク質dCTCFとSu(Hw) のDNA占有率の分析.
- タンパク質とタンパク質の相互作用,核ラミナ関連,およびインビヴォの絶縁剤活性に関する評価.
- 染色体内相互作用を測定するための4C (染色体構成キャプチャカーボンコピー) テクニック.
主要な成果:
- ドロソフィラの izolator タンパク質は,poly ((ADP-ribosyl) 化を受け,Parp 変異は izolator 機能を損なう.
- CP190のポリ ((ADP-リボシル化) は,タンパク質の相互作用,核ラミナ結合,およびin vivoの絶縁剤活性を強化する.
- CP190複合体の核群集は,Parp変異細胞で破壊されています.
- ポリ ((ADP-リボシル) 化により,隔離部位間の染色体内相互作用が促進されます.
結論:
- ポリー (((ADP-リボシル化) は,ドロソフィラの断熱器機能の規制メカニズムである.
- この翻訳後の改変は,断熱器の活性を調節することによって,三次元ゲノム組織に影響を与えます.
- ポリー ((ADP-リボシル化) は,ゲノム構造の確立と維持において重要な役割を果たします.
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