酵母菌におけるG1サイクリン (Cln) 機能の救出によって3つの新しいヒトサイクリンを分離した
1Department of Molecular Biology, MB7 Scripps Research Institute, La Jolla, California 92037.
Cell
|September 20, 1991
まとめ
研究者は,酵母における機能的補完によって,新しいヒトサイクリンC,D,Eを特定した. これらの新しいサイクリンは,異なるクラスを代表し,細胞サイクル特有のmRNA蓄積を示し,既知のヒトサイクリンファミリーを拡大しています.
科学分野:
- 分子生物学は分子生物学である.
- 細胞生物学 細胞生物学
- 遺伝学 遺伝学とは
背景:
- サイクリンは,細胞循環の重要な調節因子である.
- 人間のサイクリンA,B1,B2は,レギュレータとして知られています.
- 酵母における機能的補完は,遺伝子発見のための強力なツールです.
研究 の 目的:
- 新しいヒトサイクリンを特定するために.
- 新しいサイクリンと既知のサイクリン族の関係を特徴付ける.
- 新型サイクリンの細胞周期特異的発現を調査する.
主な方法:
- G1サイクリン欠乏酵母を補完できるヒトcDNAの分離.
- 既知のおよび新しいヒトサイクリンを特定するための配列分析.
- 細胞サイクル中のmRNA蓄積パターンの分析.
主要な成果:
- いくつかの既知のヒトサイクリン (A,B1,B2) が特定されました.
- C,D,Eと命名された3つの新しいヒトサイクリンが発見されました.
- サイクリンCとEは,既知のサイクリンと遠い関係にある新しいサイクリン類を表しています.
- サイクリンCとEのmRNAは,細胞周期のG1期の間に周期的蓄積を示します.
結論:
- 人間のサイクリン族は,これまで知られていたよりも大きい.
- 新型サイクリンC,D,Eは,細胞周期調節に関する理解を広げています.
- サイクリンCとEの周期的な発現は,G1進行における特定の役割を示唆する.
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