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低分子量ウイルスRNAは,アデノウイルス2感染中にRNAポリメラーゼIIIによって転写される
Cell
|April 1, 1976
まとめ
アデノウイルス2に感染したヒト細胞は,新しい低分子量RNA (V200,V140,V130) とVARNA (V156) を合成する. これらのウイルスのRNAは,RNAポリメラーゼIIIによって転写され,アデノウイルスゲノムの集群領域によってコードされます.
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
- 遺伝子発現の表現について
背景:
- アデノウイルス2に感染したヒト細胞は,ウイルスRNA分子を生成する.
- 感染した細胞核の中で,低分子量RNAの4種が特定されています.
研究 の 目的:
- アデノウイルス2感染中に合成された新種の低分子量ウイルスRNAを特徴付ける.
- これらのウイルスRNAの転写機構とゲノム位置を決定する.
主な方法:
- アデノウイルス2に感染したヒト細胞からの核の分離.
- RNA抽出,ウイルスのDNAへのハイブリダイゼーション,および電泳.
- アルファ-アマニチンの感受性アッセイは,RNAポリメラーゼの活性性を特定する.
- ゲノムマッピングのためのウイルスDNA (Eco RI, Sma I) の制限内核酵素消化.
主要な成果:
- 既知のVARNA (V156) と並行して3つの新しいウイルスRNA (V200,V140,V130) の識別と指定.
- V200,V156,V140,V130のRNAがDNA依存型RNAポリメラーゼIIIによって合成されていることを示した.
- これらのRNAをコードするDNA配列のマッピングは,アデノウイルス2のゲノム上の特定のクラスターされた領域 (0.18-0.38分数の長さ) にあります.
- V200,V156,V140RNAを感染した細胞の細胞質で検出する.
結論:
- アデノウイルス2は,RNAポリメラーゼIIIによって転写された複数の低分子量RNAをコードする.
- これらのウイルスRNAの遺伝子は,ウイルスのゲノム上の明確なクラスタに位置しています.
- これらの発見は,アデノウイルス遺伝子発現とRNA処理の理解に貢献します.
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