Publikation: RNA pathogen detection with one-step reverse transcription PCR and strand-displacement based signal amplification
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The Analyst. 2013, 138(5), pp. 1544-1548. ISSN 0003-2654. eISSN 1364-5528. Available under: doi: 10.1039/C2AN36688F
Zusammenfassung
A novel detection method for RNA pathogens based on one-step reverse transcription PCR is introduced here. This method utilized the reverse transcriptase activity and the 50-nuclease activity of TaqM1 DNA polymerase to transform target RNA into cDNA. The following PCR process released a fragment from the 50 end as a specific probe. Afterwards this fragment triggered a strand-displacement based signal amplification to release large amounts of G-quadruplex DNAzymes. All the probes applied in our method were unmodified DNA oligonucleotides. The detection results could be reported without sophisticated instruments either in the colorimetric way through oxidizing ABTS or in the fluorometric way by using tyramine as substrate. This approach could successfully detect HIV-1 in a blood sample and it has a linear concentration range of 6 fM to 60 pM.
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DU, Feng, Frank STRECKENBACH, Xin HUANG, Zhuo TANG, Andreas MARX, 2013. RNA pathogen detection with one-step reverse transcription PCR and strand-displacement based signal amplification. In: The Analyst. 2013, 138(5), pp. 1544-1548. ISSN 0003-2654. eISSN 1364-5528. Available under: doi: 10.1039/C2AN36688FBibTex
@article{Du2013-03-07patho-22678,
year={2013},
doi={10.1039/C2AN36688F},
title={RNA pathogen detection with one-step reverse transcription PCR and strand-displacement based signal amplification},
number={5},
volume={138},
issn={0003-2654},
journal={The Analyst},
pages={1544--1548},
author={Du, Feng and Streckenbach, Frank and Huang, Xin and Tang, Zhuo and Marx, Andreas}
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<dcterms:abstract xml:lang="eng">A novel detection method for RNA pathogens based on one-step reverse transcription PCR is introduced here. This method utilized the reverse transcriptase activity and the 50-nuclease activity of TaqM1 DNA polymerase to transform target RNA into cDNA. The following PCR process released a fragment from the 50 end as a specific probe. Afterwards this fragment triggered a strand-displacement based signal amplification to release large amounts of G-quadruplex DNAzymes. All the probes applied in our method were unmodified DNA oligonucleotides. The detection results could be reported without sophisticated instruments either in the colorimetric way through oxidizing ABTS or in the fluorometric way by using tyramine as substrate. This approach could successfully detect HIV-1 in a blood sample and it has a linear concentration range of 6 fM to 60 pM.</dcterms:abstract>
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