マルチプルスルファターゼ欠乏症は,ヒトのC (α) -フォーミルグリシンを生成する酵素をコードする遺伝子の変異によって引き起こされます
Thomas Dierks1, Bernhard Schmidt, Ljudmila V Borissenko
1Biochemie II, Universität Göttingen, Germany.
Cell
|May 22, 2003
まとめ
C ((alpha) -フォーマルグリシン (FGly) は,硫酸塩酵素の機能に不可欠です. その欠乏はマルチスルファターゼ欠乏症 (MSD) を引き起こし,FGly生成酵素 (FGE) を回復することによって治療可能な障害である.
科学分野:
- バイオケミストリー バイオケミストリー
- 遺伝学 遺伝学とは
- 分子生物学は分子生物学である.
背景:
- C ((alpha) -formylglycine (FGly) は,真核細胞の硫酸塩酵素における必須の触媒残基である.
- FGlyは,エンドプラズマの網膜内のシステインから,翻訳後形成されます.
- FGly形成の遺伝的欠陥は,リソソムの貯蔵障害であるマルチスルファターゼ欠乏症 (MSD) に繋がります.
研究 の 目的:
- FGly生成酵素 (FGE) とその遺伝子を特定し,特徴づけること.
- FGE変異を分析することによって,MSDの遺伝的基礎を調査する.
- FGE遺伝子療法を評価することによって,MSDの治療戦略を探求する.
主な方法:
- FGlyを生成する酵素 (FGE) の浄化.
- MSD患者におけるFGEの遺伝子識別と配列決定.
- cDNAトランスデュークションによる患者由来フィブロブラストにおけるFGEの機能分析.
主要な成果:
- FGlyを生成する酵素 (FGE) を浄化し,そのエンコーディング遺伝子を特定しました.
- 7人のMSD患者でFGE遺伝子の9つの変異が見つかりました.
- FGEのcDNAのトランスデュークションは,変異したcDNAとは異なり,患者の線維芽細胞におけるスルファターゼ活性を部分的に回復させた.
結論:
- FGE遺伝子は,FGly形成とスルファターゼ活性に不可欠である.
- FGE遺伝子の変異により,マルチスルファターゼ欠乏症 (MSD) が発生する.
- 機能的なFGEcDNAを用いた遺伝子治療は,MSDを治療する可能性を示しています.
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