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Synthesis of Information-bearing Peptoids and their Sequence-directed Dynamic Covalent Self-assembly
Published on: February 6, 2020
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Una hélice cuadrada peptoide a través del control sinérgico de ángulos diédricos de la columna vertebral
Benjamin C Gorske1, Emily M Mumford1, Charles G Gerrity1
1Department of Chemistry, Bowdoin College , 6600 College Station, Brunswick, Maine 04011-8466, United States.
Journal of the American Chemical Society
|May 25, 2017
Resumen
Los investigadores desarrollaron una nueva estructura secundaria de plegador peptoide, la η-hélice, que ofrece un control predecible y una funcionalidad diversa para materiales y medicamentos avanzados.
Área de la Ciencia:
- Química macromolecular y nanociencia
- Química de los polímeros sintéticos
Sus antecedentes:
- El desarrollo de nuevas estructuras secundarias es crucial para materiales avanzados, máquinas moleculares y medicamentos.
- Los foldamers sintéticos ofrecen ventajas en diseño y diversidad funcional, pero carecen de principios de control predictivo.
Objetivo del estudio:
- Establecer un control racional y modular sobre la estructura secundaria de los pliegues.
- Introducir una nueva estructura secundaria plegable con diversas funcionalidades.
Principales métodos:
- Aplicación sinérgica de dos principios de diseño en la síntesis de foldamer peptoide.
- Determinación estructural de la fase de solución mediante recocido simulado y restricciones de distancia derivadas de la NOE.
- Espectroscopia de RMN para confirmar la estructura secundaria adoptada.
Principales resultados:
- Se diseñó y sintetizó con éxito una nueva estructura secundaria, la hélice η, en foldameres peptoides.
- La hélice η exhibe giros repetidos similares a los giros β del péptido.
- El análisis estructural confirmó la adopción primaria de la estructura η-hélice, que es estable en diversas condiciones.
Conclusiones:
- Los principios de diseño desarrollados permiten un control racional de la estructura secundaria del plegador peptoide.
- La hélice η es una estructura estable y sintéticamente accesible con potencial para diversas aplicaciones.
- Este trabajo avanza en el diseño de foldamers para aplicaciones innovadoras de ciencia de materiales y biomédicas.
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