BTB-ZF因子は,リンパ性エフェクタープログラムを調節するために,E3リガゼクリンリンリンリン3を勧誘する
Rebecca Mathew1, Michael P Seiler, Seth T Scanlon
1Committee on Immunology, Department of Pathology, The Howard Hughes Medical Institute, University of Chicago, Chicago, Illinois 60637, USA.
Nature
|October 23, 2012
まとめ
プロミエロサイト性白血病亜鉛指 (PLZF) とBCL6転写因子は,クリン3 (CUL3) を募集してクロマチンを修正する. この相互作用は,T細胞とB細胞の分化に不可欠であり,ある種の癌において役割を果たす可能性がある.
科学分野:
- 免疫学 免疫学とは
- 分子生物学は分子生物学である.
- エピジェネティクス エピジェネティクス
背景:
- トランスクリプションファクターは,T細胞とB細胞のエフェクタプログラムを,表遺伝的リモデリングによって導きます.
- BTB-亜鉛指 (BTB-ZF) タンパク質は,これらのプロセスの主要な調節因子です.
研究 の 目的:
- PLZFとCUL3.3の相互作用を調査する.
- BTB-ZF媒介の細胞分化におけるCUL3の役割を明らかにする.
主な方法:
- タンパク質関連性を評価するための共免疫プレシピテーション.
- PLZFとCUL3.3の核局所化研究を行いました.
- ウビキチネーションアッセイ ユビキチネーションアッセイ
- 遺伝子の進化を研究するためにマウスの条件付きの遺伝子消去.
主要な成果:
- PLZFは,核内のCUL3と複合体を形成する.
- PLZFは,クロマチンを改変する複合成分のCUL3媒介のユビキチネーションを促進します.
- CUL3は,PLZFとBCL6に依存する細胞系統の発達に不可欠です.
- また,CUL3はBCL6とも結合し,別のBTB-ZF転写因子である.
結論:
- 系統特異のBTB-ZF転写因子は,CUL3をその関連する染色体修飾複合体を調節するために採用する.
- この募集は,T細胞とB細胞の分化に不可欠な,ユビキチネーションパターンを変化させます.
- PLZF-CUL3とBCL6-CUL3の相互作用は,白血病とリンパ腫におけるこれらの因子の腫瘍学的役割に寄与する可能性がある.
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