Article ; Online: CRISPR-Cas12a assisted recombinase based strand invading isothermal amplification platform designed for targeted detection of Bacillus anthracis Sterne.
International journal of biological macromolecules
2024 Volume 263, Issue Pt 1, Page(s) 130216
Abstract: Detection of a pathogen is crucial prior to all prophylaxis and post exposure treatment, as it can prevent further disease manifestation. In this study, we have developed a nucleic acid pre-amplification based CRISPR diagnostic for detection and ... ...
Abstract | Detection of a pathogen is crucial prior to all prophylaxis and post exposure treatment, as it can prevent further disease manifestation. In this study, we have developed a nucleic acid pre-amplification based CRISPR diagnostic for detection and surveillance of Bacillus anthracis Sterne. Strand Invasion Based isothermal Amplification (SIBA) platform and Cas12a (CRISPR endo-nuclease) was used to develop CRISPR-SIBA, a multifaceted diagnostic platform. SIBA was employed as the isothermal pre-amplification platform. CRISPR-Cas12a based collateral trans-cleavage reaction was used to ensure and enhance the specificity of the system. Efficiency of the detection system was evaluated by detecting Bacillus anthracis Sterne in complex wastewater sample backgrounds. Previously reported, Prophage 3, Cya and Pag genes of Bacillus anthracis were used as targets for this assay. The amplification system provided reliable and specific detection readout, with a sensitivity limit of 100 colony forming units in 40 min. The endpoint fluorescence from CRISPR collateral cleavage reactions gave a detection limit of 10 |
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MeSH term(s) | Recombinases/genetics ; Bacillus anthracis/genetics ; CRISPR-Cas Systems/genetics ; Biological Assay ; Deoxyadenosines ; Thionucleosides |
Chemical Substances | Recombinases ; 5'-deoxy-5'-S-isobutylthioadenosine (35899-54-8) ; Deoxyadenosines ; Thionucleosides |
Language | English |
Publishing date | 2024-02-18 |
Publishing country | Netherlands |
Document type | Journal Article |
ZDB-ID | 282732-3 |
ISSN | 1879-0003 ; 0141-8130 |
ISSN (online) | 1879-0003 |
ISSN | 0141-8130 |
DOI | 10.1016/j.ijbiomac.2024.130216 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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