結晶性線維症のトランスメブラン伝導性調節器の表現と特徴
R J Gregory1, S H Cheng, D P Rich
1Genzyme Corporation, Framingham, Massachusetts.
Nature
|September 27, 1990
まとめ
研究者らは,システィック線維症のトランスメブラン伝導性調節体 (CFTR) タンパク質,システィック線維症の欠陥塩化物チャネルを特定しました. 彼らはCFTRをリン酸化グリコタンパク質として特徴付け,診断と治療のためのさらなる研究を可能にしました.
科学分野:
- 分子生物学は分子生物学である.
- 遺伝学 遺伝学とは
- 細胞生物学 細胞生物学
背景:
- 囊性線維症 (Cystic fibrosis,CF) は,上皮細胞に影響する致命的な遺伝疾患である.
- CFは,cAMPが調節するチャンネルが故障しているため,塩化物イオン輸送が欠陥している.
- CFをコードするCFTRをコードするCFの遺伝子が特定されました.
研究 の 目的:
- CFTRタンパク質を特徴付けるために.
- CFの機能的研究,診断,治療を可能にするために.
主な方法:
- 細菌におけるCFTR発現のための補完的なDNA (cDNA) を構築した.
- 発現したCFTR in vitroおよびin vivo.
- 酸化アッセイと抗体免疫プレシピテーションを用いた.
- 部分タンパク質分解による指紋採取を行いました.
主要な成果:
- CFTRは膜関連グリコタンパク質である.
- CFTRは,cAMP依存タンパク質キナーゼによってリン酸化され得る.
- 再結合タンパク質と内生CFTRタンパク質は構造的に区別がつかない.
結論:
- CFTRタンパク質の重要な特徴を確立しました.
- CFTR機能を研究するための基礎を提供した.
- CFの診断と治療戦略を容易にすることを目的としています.
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