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酵母種のシーケンシングと比較は,遺伝子と規制要素を特定するために行われます
Manolis Kellis1, Nick Patterson, Matthew Endrizzi
1Whitehead/MIT Center for Genome Research, Nine Cambridge Center, Cambridge, Massachusetts 02142, USA. manoli@mit.edu
Nature
|May 16, 2003
まとめ
比較ゲノミクスは,酵母遺伝子の重要な機能的要素を明らかにします. この研究は,酵母遺伝子のカタログを改訂し,新しい規制モチーフを特定し,多様な生物のゲノム分析を進めています.
科学分野:
- ゲノミクスゲノミクスとは
- 比較ゲノミクスとは
- 分子生物学は分子生物学である.
背景:
- 機能的なゲノム要素を特定することは,現代生物学における大きな課題です.
- 比較ゲノミクスは,ゲノム分析のための強力なアプローチを提供します.
- 関連酵母種の高品質のドラフトシーケンスがあります.
研究 の 目的:
- 関連する種を用いたSaccharomyces cerevisiaeの比較分析を行う.
- 遺伝子や規制モチーフを含む機能的なゲノム要素を特定し,特徴づけること.
- イーストの遺伝子カタログを改訂し,新しい規制要素を発見する.
主な方法:
- 関連酵母種 (S. paradoxus,S. mikatae,S. bayanus) のゲノムアラインメントと進化的特徴.
- 遺伝子と規制モチーフの直接識別のための方法の開発.
- 遺伝子内容の分析と種間のモチーフ発見.
主要な成果:
- イーストの遺伝子カタログを大幅に改訂し, ~15%の遺伝子に影響を与え,総数を ~500 減少させた.
- 既知のおよび新しい規制モチーフを含む72の全ゲノム要素の自動識別.
- 特定されたモチーフの組み合わせ相互作用に関する推論された機能と洞察.
結論:
- 比較ゲノミクスは,真核ゲノムにおける機能的要素の識別に有効です.
- この研究は,酵母菌のゲノムとその規制の状況に関する改訂された理解を提供します.
- 開発された方法は,ヒトを含む他の生物のゲノム分析に広範な影響を及ぼします.
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