CRISPR-induced DNA reorganization for multiplexed nucleic acid detection

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Dangosydd eitem ddigidol (DOI)

  • Margot Karlikow
    University of Toronto
  • Evan Amalfitano
    University of Toronto
  • Xiaolong Yang
    University of Toronto
  • Jennifer Doucet
    University of Toronto
  • Abigail Chapman
    University of British Columbia
  • Peivand Sadat-Moussavi
    University of Toronto
  • Paige Homme
    University of Toronto
  • Polina Sutyrina
    University of Toronto
  • Winston Chang
    University of Toronto
  • Sofia Lemak
    University of Toronto
  • Alexander Yakunin
  • Adam G. Dolezal
    University of Illinois at Urbana-Champaign
  • Shana Kelley
    University of Toronto
  • Leonard Foster
    University of British Columbia
  • Brock Harpur
    Purdue University
  • Keith Pardee
    University of Toronto

Nucleic acid sensing powered by the sequence recognition of CRIPSR technologies has enabled major advancement toward rapid, accurate and deployable diagnostics. While exciting, there are still many challenges facing their practical implementation, such as the widespread need for a PAM sequence in the targeted nucleic acid, labile RNA inputs, and limited multiplexing. Here we report FACT (Functionalized Amplification CRISPR Tracing), a CRISPR-based nucleic acid barcoding technology compatible with Cas12a and Cas13a, enabling diagnostic outputs based on cis- and trans-cleavage from any sequence. Furthermore, we link the activation of CRISPR-Cas12a to the expression of proteins through a Reprogrammable PAIRing system (RePAIR). We then combine FACT and RePAIR to create FACTOR (FACT on RePAIR), a CRISPR-based diagnostic, that we use to detect infectious disease in an agricultural use case: honey bee viral infection. With high specificity and accuracy, we demonstrate the potential of FACTOR to be applied to the sensing of any nucleic acid of interest.

Iaith wreiddiolSaesneg
Rhif yr erthygl1505
CyfnodolynNature Communications
Cyfrol14
Rhif y cyfnodolyn1
Dyddiad ar-lein cynnar17 Maw 2023
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 17 Maw 2023

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