ステロイド受容体共同調節器による転写とスプライシングの調整調整
Didier Auboeuf1, Arnd Hönig, Susan M Berget
1Department of Molecular and Cellular Biology, Department of Biochemistry and Molecular Biology, Baylor College of Medicine, One Baylor Plaza, Houston, TX 77030, USA.
まとめ
ステロイドホルモンは,遺伝子転写とRNAスプライシングを調節する. この研究は,ステロイド受容体が特定のプロモーターとコレギュレータを通じてプレ-mRNA処理を制御し,最終的なmRNAエクソン含有量に影響することを示しています.
科学分野:
- 分子生物学は分子生物学である.
- 遺伝子規制 遺伝子規制
- バイオケミストリー バイオケミストリー
背景:
- プロモーターのアイデンティティは,代替RNA処理の決定に影響を与える重要な要因としてますます認識されています.
- RNAポリメラーゼII転写と前駆者メッセンジャーRNA (pre-mRNA) 処理の相互作用を理解することは,遺伝子発現の調節を解読する上で極めて重要です.
研究 の 目的:
- ステロイド受容体媒介の転写がRNA処理に与える影響を調査する.
- ステロイドホルモンが,ステロイド感受性プロモーターを通じた代替スプライシングに影響を及ぼすかどうかを判断する.
主な方法:
- ステロイドに敏感なプロモーターとステロイドに反応しないプロモーターによって誘導される代替スプライシングによる利用されたレポーター遺伝子アッセイ.
- プレ-mRNA処理に対するステロイドホルモンと核受容体共調剤の効果を調べた.
主要な成果:
- ステロイドホルモンは,特定のステロイド受容体に依存し,特定のステロイド受容体に対して選択的にステロイド感受性プロモーターからのプレ-mRNA処理に影響を及ぼすことが実証されています.
- ステロイドに反応しないプロモーターでは,プレ-mRNA処理に有意な影響は見られなかった.
- いくつかの核受容体共同調節器は,異なるスプライシング効果を示し,RNA処理を調節する役割を示した.
結論:
- ステロイドホルモン受容体は,遺伝子転写と結果のmRNAのエクソン組成を同時に制御することができます.
- この二重制御は,転写とRNA処理の両方に関与する共同調節体の採用によって達成される.
- 発見は,RNAスプライシングの結果に影響を与えるステロイドホルモンによる遺伝子調節の新しいメカニズムを強調しています.
キーワード:
非プログラム的なものです.関連する概念動画
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