VEGAS は 哺乳類 の 細胞 の 容易 な 進化 の 基盤
Justin G English1, Reid H J Olsen1, Katherine Lansu1
1Department of Pharmacology, University of North Carolina, Chapel Hill, NC 27514, USA.
Cell
|July 9, 2019
まとめ
哺乳類の細胞における指向的な進化は,遺伝的に活性化する配列 (VEGAS) システムのウイルスの進化を用いて容易である. この方法は,原生細胞環境でタンパク質を進化させることで,分子ツールと治療薬の急速な開発を可能にします.
科学分野:
- 分子生物学
- バイオテクノロジー
- 遺伝学
背景:
- 誘導的進化は 分子ツールや治療法の開発に不可欠です
- 現在の方法はしばしば単細胞生物に依存し,それは特定のタンパク質の進化を制限することができます.
- 哺乳類の細胞に効率的な指向進化システムが必要である.
研究 の 目的:
- 哺乳類の細胞に指向された進化のための簡単なシステムを開発する.
- 細胞環境内でタンパク質の迅速な選択と進化を可能にします
- 多様なタンパク質の進化に システムの有用性を示すために
主な方法:
- 遺伝子操作配列のウイルス進化 (VEGAS) システムの開発
- 遺伝と多様性のためのRNAベクターとしてSindbisウイルスを利用する.
- 宿主細胞内で選択するための 遺伝子操作された配列の実装
- 24時間以内に高変異率 (10−3基1変異) の急速な選択サイクルを達成する.
主要な成果:
- VEGAS システムを用いて哺乳類の細胞における 容易な指向進化を証明した.
- 高変異率で迅速な選択サイクル (24時間) を達成した.
- 転写因子,GPCR,アロステリックナノボディを 進化させました
- 標的タンパク質の進化は 1週間以内に完了した
結論:
- VEGASシステムは 哺乳類の細胞の 方向化された進化のための 強力で迅速な方法を提供します
- このシステムは,特定のタンパク質の標的に対する単細胞ベースの進化の限界を克服します.
- VEGASは,ネイティブの細胞環境で進化を可能にすることで,新しい分子ツールと治療法の開発を加速します.
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