SV40小型t抗原によるRNAポリメラーゼIIおよびIIIプロモーターのトランス活性化
M Loeken1, I Bikel, D M Livingston
1Joslin Diabetes Center, Boston, Massachusetts 02215.
Cell
|December 23, 1988
まとめ
SV40小型t抗原 (t) は,特定のRNAポリメラーゼIIおよびIIIプロモーターを活性化することができます. この新たに特定された機能は,おそらく転写因子を修正し,その保存された構造とウイルスの変容における役割を説明する.
科学分野:
- 分子生物学は分子生物学である.
- ウイルス学 ウイルス学 ウイルス学
- バイオケミストリー バイオケミストリー
背景:
- SV40小型t抗原 (t) の正確な生化学的機能は不明である.
- その保存された構造とSV40大T抗原媒介変換における役割は,重要な生物学的役割を示唆しています.
研究 の 目的:
- SV40 小型t抗原 (t) の細胞内生化学的機能を解明する.
- ウイルスの感染サイクルと変容過程におけるt抗原の役割を理解する.
主な方法:
- SV40小型t抗原がRNAポリメラーゼIIおよびIIIプロモーターをトランス活性化する能力を調査した.
- t抗原とDNAの相互作用とそのプロモーター活動への影響を評価した.
主要な成果:
- SV40小型t抗原 (t) は,選択されたRNAポリメラーゼIIおよびIIIプロモーターをトランス活性化する能力を示した.
- t抗原はDNAに直接結合せず,テストされたすべてのポリメラーゼIIプロモーターを刺激しませんでした.
結論:
- SV40小型t抗原は,特定のプロモーターのトランス活性化を含む細胞内生化学的機能を有する.
- このトランス活性化活動は,直接のDNA結合ではなく,転写因子の活性化によって媒介される可能性が高い.
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