2,375個のヒト脳遺伝子の配列を特定した
M D Adams1, M Dubnick, A R Kerlavage
1Receptor Biochemistry and Molecular Biology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, Maryland 20892.
Nature
|February 13, 1992
まとめ
研究者は,発現した配列タグ (EST) を作成するために,部分DNA配列を解析を使用して,人間の遺伝子を素早く特徴付けました. この研究は2,500以上の新しいヒト遺伝子を特定し,既知のヒト遺伝子セットを大幅に拡張し,貴重なゲノムデータを提供しました.
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:
- エクスプレスされた配列タグ (ESTs) は,遺伝子発見のための迅速な方法を提供します.
- 以前の研究は,部分DNA配列を解析することによって発現した遺伝子を特徴づけるための基礎を確立しました.
研究 の 目的:
- 大規模な発現配列タグ生成を通じて,ヒト遺伝子のカタログを拡大する.
- 人間の脳のcDNAライブラリから核にコードされたメッセンジャーRNAを特徴づけるため.
主な方法:
- 補完的なDNA (cDNA) のクローンの部分DNAシーケンシング.
- 4つの異なる人間の脳図書館からのcDNAクローンの分離.
- エクスプレスされたシーケンスタグ (EST) の生成と分析.
主要な成果:
- 2,672個のcDNAクローンから2,375個の新しいESTを生成しました.
- 以前のデータと組み合わせると,2500以上の新しいヒト遺伝子が特定されました.
- 870,769の塩基対を配列化し,ヒトの遺伝子数を約2倍にしました.
結論:
- この研究は,既知のヒト遺伝子の数を大幅に増加させた.
- 特定された遺伝子は,全ヒトゲノムの最大5%を占める可能性があります.
- このデータセットは,ヒトゲノミクス研究のための貴重なリソースを提供します.
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