まとめ
Rhynchosciaraの唾液腺における14Sポリ (A) +RNAの出現は,B-2 DNAのパフ開口と相関しています. このRNAは素早く細胞質に輸送されるが,不安定である.
科学分野:
- 分子生物学は分子生物学である.
- 発達生物学 発達生物学について
- 遺伝学 遺伝学とは
背景:
- Rhynchosciaraの唾液腺の巨大なDNAパフは,強い遺伝子活動がある場所です.
- 開発中の遺伝子調節における特定のRNA種の役割は極めて重要です.
研究 の 目的:
- 唾液腺発達の過程で14Sポリ (A) +RNAの起源と運命を調査する.
- B-2 DNAの膨張活動と14Sポリ (A) +RNAの産生との関係を決定する.
主な方法:
- リンコシアラの唾液腺からの3H-RNAの電泳分析.
- B-2のDNAパフの微小切開. B-2のDNAパフの微小切開.
- 14Sポリ (A) +RNAをB-2ロカスに特異的にハイブリッド化する.
主要な成果:
- 14Sポリ (A) +RNAの出現は,B-2DNAパフの開口と関連しています.
- 14Sポリ(A) +RNAはB-2パフから転写される.
- ポリアデニレーションは染色体レベルで起こりますが,核液では発生しません.
- 14SRNAは細胞質に急速に移動し,不安定である.
結論:
- B-2DNAパフは14Sポリ (A) +RNAの源である.
- 染色体レベルのポリアデニレーションは,RNA処理に不可欠です.
- 急速な細胞質輸送と14SRNAの不安定性は,特定の調節作用を示唆しています.
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