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PNA-Assisted DNAzymes to Cleave Double-Stranded DNA for Genetic Engineering with High Sequence Fidelity

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.1c03129· OSTI ID:1807587
 [1];  [2];  [2];  [2];  [2];  [3]
  1. Center for Advanced Bioenergy and Bioproducts Innovation (CABBI), Urbana, IL (United States); Univ. of Illinois at Urbana-Champaign, IL (United States); University of Illinois
  2. Univ. of Illinois at Urbana-Champaign, IL (United States)
  3. Center for Advanced Bioenergy and Bioproducts Innovation (CABBI), Urbana, IL (United States); Univ. of Illinois at Urbana-Champaign, IL (United States)
DNAzymes have been widely used in many sensing and imaging applications but have rarely been used for genetic 5 engineering since their discovery in 1994, because their substrate scope is mostly limited to single-stranded DNA or RNA, whereas 6 genetic information is stored mostly in double-stranded DNA (dsDNA). To overcome this major limitation, in this paper we report 7 peptide nucleic acid (PNA)-assisted double-stranded DNA nicking by DNAzymes (PANDA) as the first example to expand 8 DNAzyme activity toward dsDNA. We show that PANDA is programmable in efficiently nicking or causing double strand breaks on 9 target dsDNA, which mimics protein nucleases and can act as restriction enzymes in molecular cloning. In addition to being much 10 smaller than protein enzymes, PANDA has a higher sequence fidelity compared with CRISPR/Cas under the condition we tested, 11 demonstrating its potential as a novel alternative tool for genetic engineering and other biochemical applications.
Research Organization:
Center for Advanced Bioenergy and Bioproducts Innovation (CABBI), Urbana, IL (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
Grant/Contract Number:
SC0018420
OSTI ID:
1807587
Journal Information:
Journal of the American Chemical Society, Journal Name: Journal of the American Chemical Society Journal Issue: 26 Vol. 143; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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