リバーシブル・ターミネーター化学を用いた正確な全ヒトゲノム配列決定です
David R Bentley1, Shankar Balasubramanian, Harold P Swerdlow
1Illumina Cambridge Ltd. (Formerly Solexa Ltd), Chesterford Research Park, Little Chesterford, Nr Saffron Walden, Essex CB10 1XL, UK. dbentley@illumina.com
Nature
|November 7, 2008
まとめ
この研究は,迅速な全ゲノム再配列化のための低コスト,高通量DNA配列化方法を導入しています. このアプローチは,何百万もの遺伝子変異を正確に識別し,生物医学の研究を進めています.
科学分野:
- ゲノミクスゲノミクスとは
- 分子生物学は分子生物学である.
- バイオインフォマティックス
背景:
- DNAの配列決定は,遺伝子研究と医学的な発見に不可欠です.
- 伝統的なロングリードシーケンシングは,参照ゲノムを用いたより迅速な再シーケンシングアプローチによって補完されています.
- 種内の遺伝的変異を特定することは,現代のゲノミクスの重要な目標です.
研究 の 目的:
- 新しく,費用対効果が高く,迅速なDNAシーケンシングアプローチを開発する.
- 実験ごとに何十億もの正確な核酸塩基配列を生成する.
- この方法が全ゲノム再配列化および変種特徴化における有用性を実証する.
主な方法:
- 表面に付着した単一のDNA分子を利用して,in situ増幅を行う.
- 光可逆ターミネーターデオキシリボヌクレオチドを用いた合成シーケンシングを使用しています.
- 質の高いDNA配列データを生成するために表面画像を分析する.
主要な成果:
- 低コストで,何十億もの塩基を精密な核酸塩基配列で生成しました.
- ヒトのX染色体とナイジェリアのヨルバ人の個体で全ゲノム再配列化を成功裏に実施しました.
- 数百万の単核型多形体と,これまでに未知のものを含む数十万の構造変異を特徴づけた.
結論:
- 開発されたシーケンシングアプローチは,全ゲノム再シーケンシングに正確で迅速で経済的です.
- この方法は,様々な生物医学研究分野に広く適用できます.
- 生物学的および医学的な理解を進めるための遺伝的変異の効率的な識別を可能にします.
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