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Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and carry instructions for its functioning.
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The pentose sugar in DNA is deoxyribose, while in RNA the pentose sugar is ribose. The difference between the sugars is the presence of the hydroxyl group on the ribose's second carbon and a hydrogen on the deoxyribose's second carbon. The phosphate residue attaches to the hydroxyl group of the 5′ carbon of one sugar and the hydroxyl group of the 3′ carbon of the sugar of the next nucleotide, which forms  a 5′ to 3′ phosphodiester linkage.
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Nucleic acids are the most important macromolecules for the continuity of life. They carry the cell's genetic blueprint and have instructions for its functioning. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
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Nucleic acid biosynthesis is a fundamental biochemical process that produces the purine and pyrimidine nucleotides essential for DNA and RNA synthesis. This pathway maintains a balanced nucleotide pool, preventing imbalances that could jeopardize genetic integrity and cellular function. Given the crucial role of nucleotides, their synthesis is tightly regulated to ensure proper cellular homeostasis.Purine BiosynthesisThe biosynthesis of purine nucleotides begins with ribose-5-phosphate, a...
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Concepto y desarrollo de ácidos nucleicos marco

Zhilei Ge1, Hongzhou Gu2, Qian Li1

  • 1School of Chemistry and Chemical Engineering, and Institute of Molecular Medicine, Renji Hospital, School of Medicine , Shanghai Jiao Tong University , Shanghai 200240 , China.

Journal of the American Chemical Society
|December 6, 2018
PubMed
Resumen
Este resumen es generado por máquina.

La nanotecnología estructural del ADN utiliza propiedades de ácido nucleico para construir nanoestructuras precisas. Los ácidos nucleicos marco (FNA) permiten la organización a nanoescala con amplias aplicaciones en la ciencia y la medicina.

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Área de la Ciencia:

  • Nanotecnología estructural del ADN
  • Autoensamblaje de ácido nucleico
  • Ciencias de los nanomateriales

Sus antecedentes:

  • El ADN y el ARN exhiben un emparejamiento preciso de bases de Watson-Crick, lo que permite la creación de nanoestructuras complejas en 1D, 2D y 3D.
  • Las herramientas de diseño asistido por computadora automatizan la creación de diversas nanoestructuras de ADN.
  • Los ácidos nucleicos marco (FNA) están surgiendo como plataformas versátiles para la organización molecular.

Objetivo del estudio:

  • Destacar el estado de la técnica en el diseño y la construcción de FNA ensamblados con precisión.
  • Para esbozar los desafíos actuales y las oportunidades futuras para los FNA.
  • Explorar el potencial de traducción de las FNA en diversas aplicaciones.

Principales métodos:

  • Explotación del emparejamiento de bases de Watson-Crick para el autoensamblaje programable.
  • Utilización de herramientas asistidas por computadora para el diseño automatizado de nanoestructuras.
  • Construcción de estructuras de ADN de caparazón o esqueleto (FNA).

Principales resultados:

  • Desarrollo de nanoestructuras exquisitas de ácido nucleico en una a tres dimensiones.
  • Creación de FNA para organizar moléculas y nanopartículas con precisión nanométrica.
  • Demostrar las propiedades biológicas intrínsecas y las funcionalidades adaptables de los FNA.

Conclusiones:

  • Los FNA representan una herramienta poderosa para la organización a nanoescala con un potencial significativo.
  • La investigación adicional sobre el diseño y la construcción de FNA puede desbloquear diversas aplicaciones físicas, químicas y biológicas.
  • La explotación del potencial estructural de las ANF ofrece perspectivas prometedoras para la investigación y el desarrollo traslacionales.