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<p>Hu <i>et al.‘</i>s new study, published in Nature Biotechnology, introduces QBEmax; a tiny, conformationally sound editing tool with a cytidine deaminase buried within a looping permuted Cas9 (cpCas9). Supported by molecular dynamics models and AlphaFold3 structural predictions, this unique internal fusion creates a structurally protected complex that improves editing accuracy and lowers typical artifacts such as indels and impure base conversions (Hu et al. Nature Biotechnology:1-7, 2025). High precision editing (up to 99.8% purity), lower indels, and lower off target impacts well suit imminent plant transformation events. Its tiny, stable architecture and wider editing window at PAM sites increase its ability for precise and adaptable trait change in complex plant genomes.</p>

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QBEmax redefines the precise base editing in crop plants

  • 期刊论文

  • 发表日期：

    2025年6月13日

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  • Muhammad Waseem Sajjad,
  • Fatima Muzamil,
  • Rubab Zahra Naqvi,
  • Imran Amin

摘要

Hu et al.‘s new study, published in Nature Biotechnology, introduces QBEmax; a tiny, conformationally sound editing tool with a cytidine deaminase buried within a looping permuted Cas9 (cpCas9). Supported by molecular dynamics models and AlphaFold3 structural predictions, this unique internal fusion creates a structurally protected complex that improves editing accuracy and lowers typical artifacts such as indels and impure base conversions (Hu et al. Nature Biotechnology:1-7, 2025). High precision editing (up to 99.8% purity), lower indels, and lower off target impacts well suit imminent plant transformation events. Its tiny, stable architecture and wider editing window at PAM sites increase its ability for precise and adaptable trait change in complex plant genomes.