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Redes dinámicas constitucionales funcionales que revelan los principios de reproducción / variación / selección

Liang Yue1, Shan Wang1, Itamar Willner1

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Los investigadores desarrollaron redes dinámicas constitucionales basadas en ácido nucleico (CDN) utilizando principios de reproducción, variación y selección. Este estudio demuestra las funciones y vías catalíticas emergentes para la construcción de redes dinámicas avanzadas, cerradas y en cascada.

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Área de la Ciencia:

  • Biología sintética
  • La bioquímica
  • Ingeniería Química

Sus antecedentes:

  • La síntesis y detección evolutiva de alto rendimiento son cruciales para la ingeniería de vías químicas.
  • Las redes dinámicas constitucionales (CDN) ofrecen un marco para sistemas moleculares complejos.
  • Los sistemas basados en ácido nucleico proporcionan bloques de construcción versátiles para la evolución molecular.

Objetivo del estudio:

  • Introducir y demostrar la evolución de las redes dinámicas constitucionales (CDN) basadas en ácidos nucleicos.
  • Mostrar la aplicación de los principios de reproducción, variación y selección en la evolución molecular.
  • Lograr transformaciones catalíticas emergentes y construir redes dinámicas avanzadas con funciones en cascada.

Principales métodos:

  • Montaje de una biblioteca de hebras de ácido nucleico y horquillas como módulos funcionales.
  • Iniciar la selección con un disparador primario (T1) para formar una CDN madre (X).
  • Utilizando las propiedades catalíticas de las CDN evolucionadas para dividir las horquillas, generando fragmentos para la replicación (T1) y la variación (T2, T3).
  • Aplicación de disparadores de contador para la selección guiada de las CDN evolucionadas.
  • Integración de sustratos adicionales para obtener transformaciones catalíticas emergentes.

Principales resultados:

  • Demostró los principios de reproducción, variación y selección en las CDN basadas en ácido nucleico.
  • Las CDN evolucionadas exhibieron propiedades catalíticas para la escisión de sustratos de horquilla.
  • Selección guiada exitosa de redes específicas utilizando disparadores de contador.
  • Se han logrado transformaciones catalíticas emergentes a través de reacciones dictadas por CDN.
  • Redes dinámicas evolutivas construidas con funciones de puertas y cascada mejoradas.

Conclusiones:

  • Las CDN basadas en ácido nucleico pueden evolucionar utilizando principios fundamentales de reproducción, variación y selección.
  • Las CDN evolucionadas exhiben actividades catalíticas emergentes y permiten transformaciones moleculares complejas.
  • Este trabajo proporciona una vía para construir redes dinámicas evolutivas sofisticadas con funciones sintonizables.