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関連する概念動画

CRISPR01:59

CRISPR

49.4K
Genome editing technologies allow scientists to modify an organism’s DNA via the addition, removal, or rearrangement of genetic material at specific genomic locations. These types of techniques could potentially be used to cure genetic disorders such as hemophilia and sickle cell anemia. One popular and widely used DNA-editing research tool that could lead to safe and effective cures for genetic disorders is the CRISPR-Cas9 system. CRISPR-Cas9 stands for Clustered Regularly Interspaced...
49.4K
CRISPR and crRNAs02:53

CRISPR and crRNAs

16.7K
Bacteria and archaea are susceptible to viral infections just like eukaryotes; therefore, they have developed a unique adaptive immune system to protect themselves. Clustered regularly interspaced short palindromic repeats and CRISPR-associated proteins (CRISPR-Cas) are present in more than 45% of known bacteria and 90% of known archaea.
The CRISPR-Cas system stores a copy of foreign DNA in the host genome and uses it to identify the foreign DNA upon reinfection. CRISPR-Cas has three different...
16.7K
Homologous Recombination02:31

Homologous Recombination

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The basic reaction of homologous recombination (HR) involves two chromatids that contain DNA sequences sharing a significant stretch of identity. One of these sequences uses a strand from another as a template to synthesize DNA in an enzyme-catalyzed reaction. The final product is a novel amalgamation of the two substrates. To ensure an accurate recombination of sequences, HR is restricted to the S and G2 phases of the cell cycle. At these stages, the DNA has been replicated already and the...
50.2K

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関連する実験動画

Updated: Jun 5, 2025

Selection-dependent and Independent Generation of CRISPR/Cas9-mediated Gene Knockouts in Mammalian Cells
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CRISPR-Cas12aを用いたDNA情報保存におけるランダムな浄化

Hongyu Shen1, Zhi Weng1, Haipei Zhao1

  • 1School of Biomedical Engineering, The International Peace Maternity and Child Health Hospital, Zhangjiang Institute for Advanced Study and National Center for Translational Medicine, Shanghai Jiao Tong University, Shanghai 200240, China.

Journal of the American Chemical Society
|December 10, 2024
PubMed
まとめ

この研究では,CRISPR-Cas12a (RSDISC) を使用したDNAデータストレージのランダム化が導入されています. この方法はDNAファイルを安全に消去し,高い効率を達成し,安全なデータ管理を可能にします.

さらに関連する動画

A Standard Methodology to Examine On-site Mutagenicity As a Function of Point Mutation Repair Catalyzed by CRISPR/Cas9 and SsODN in Human Cells
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A Standard Methodology to Examine On-site Mutagenicity As a Function of Point Mutation Repair Catalyzed by CRISPR/Cas9 and SsODN in Human Cells

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Generation of Defined Genomic Modifications Using CRISPR-CAS9 in Human Pluripotent Stem Cells
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Generation of Defined Genomic Modifications Using CRISPR-CAS9 in Human Pluripotent Stem Cells

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関連する実験動画

Last Updated: Jun 5, 2025

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A Standard Methodology to Examine On-site Mutagenicity As a Function of Point Mutation Repair Catalyzed by CRISPR/Cas9 and SsODN in Human Cells
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科学分野:

  • バイオテクノロジー
  • ゲノミクス
  • 情報科学

背景:

  • DNAデータストレージはメタデータの高密度と安定性を提供します.
  • 現在のDNAの保存には データを消去する安全な方法がありません

研究 の 目的:

  • DNA情報保存におけるランダムな浄化のための安全で効率的な方法を開発する.
  • 選択的なファイル消去を可能にし,DNAストレージシステムのデータセキュリティを強化します.

主な方法:

  • CRISPR-Cas12aによる単一鎖DNA (ssDNA) の付随的な割れ目を利用した.
  • 選択的なssDNA分解のための制御されたプライマー-テンプレート混合熱力学.
  • CRISPR-Cas12a (RSDISC) を使用したDNA情報保存におけるランダムな浄化.

主要な成果:

  • 1ラウンドで28,258個のオリゴヌクレオチドを 99.9%の消毒効率で処理した.
  • ハイブリッド化効率モデルに基づいて最大 10^12 ファイルの消去の可能性を証明した.
  • ssDNAの選択的な分解が示され,GCの含有量,長さ,構造が変化した.

結論:

  • RSDISCはDNAデータの保存に適した ランダムな浄化方法を提供する.
  • このアプローチは,情報の暗号化,ファイル分類,メモリディロケーションをサポートします.
  • DNAの保存における安全で正確なデータ処理のための基盤を確立します.