CRISPR-mediated strand displacement logic circuits with toehold-free DNA

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,...

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Detalles Bibliográficos
Autores: Montagud-Martínez, Roser, Heras-Hernández, María, Goiriz Beltrán, Lucas, Daròs Arnau, José Antonio, Rodrigo, Guillermo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/262023
Acceso en línea:http://hdl.handle.net/10261/262023
Access Level:acceso abierto
Palabra clave:Biological computing
DNA nanotechnology
Synthetic biology
Descripción
Sumario: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.