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RESEARCH PRODUCT
CRISPR-mediated strand displacement logic circuits with toehold-free DNA
María Heras-hernándezJosé-antonio DaròsGuillermo RodrigoLucas GoirizRoser Montagud-martínezsubject
0106 biological sciencesLetterTranscription GeneticComputer scienceStreptococcus pyogenesRibonuclease HBiomedical EngineeringDNA Single-StrandedNanotechnology01 natural sciencesBiochemistry Genetics and Molecular Biology (miscellaneous)Displacement (vector)law.invention03 medical and health sciencesSynthetic biologychemistry.chemical_compoundComputers MolecularDNA computinglaw010608 biotechnologyCRISPR-Associated Protein 9Biological computingDNA nanotechnologyCRISPRNanotechnologyClustered Regularly Interspaced Short Palindromic RepeatsGene Regulatory NetworksDNA nanotechnologySynthetic biology030304 developmental biologyElectronic circuit0303 health sciencesGeneral MedicineRibonuclease PancreaticchemistryLogic gatebiological computingsynthetic biologyCRISPR-Cas SystemsEndopeptidase KGenetic EngineeringDNARNA Guide Kinetoplastidadescription
DNA nanotechnology, and DNA computing in particular, has grown extensively over the past decade to end with a variety of functional stable structures and dynamic circuits. However, the use as designer elements of regular DNA pieces, perfectly complementary double strands, has remained elusive. Here, we report the exploitation of CRISPR-Cas systems to engineer logic circuits based on isothermal strand displacement that perform with toehold-free double-stranded DNA. We designed and implemented molecular converters for signal detection and amplification, showing good interoperability between enzymatic and nonenzymatic processes. Overall, these results contribute to enlarge the repertoire of substrates and reactions (hardware) for DNA computing.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2021-01-01 |