Modelación estructural de la proteína de la cápside del virus a de la papa (PVA, Potyvirus)

Autores/as

  • Pablo Gutiérrez Universidad Nacional de Colombia
  • Sara Bastos-Aristizábal Universidad Nacional de Colombia
  • Mauricio Marín Universidad Nacional de Colombia

DOI:

https://doi.org/10.17533/udea.acbi.14218

Palabras clave:

cápside viral, modelo estructural, potyvirus, PVA

Resumen

A diferencia de lo que ocurre con diversos virus icosahédricos, la estructura a alta resolución de la cápside de los virus flexuosos de plantas pertenecientes a la familia Potyviviridae no ha podido ser determinada aún. Los potyvirus son un grupo de gran importancia económica en la agricultura al afectar cultivos como papa, tomate, tabaco, papaya y caña de azúcar, entre muchos otros; por lo cual la comprensión de su estructura puede arrojar información valiosa para lograr un conocimiento más detallado de sus mecanismos biológicos, con miras al diseño de estrategias de control. En este trabajo se presenta un modelo de la estructura tridimensional de la región central de la proteína de la cápside del virus A de la papa (PVA), utilizando una combinación de herramientas de predicción de estructura secundaria y docking. El modelo presentado tiene dimensiones compatibles con la estructura de baja resolución obtenida en otros estudios mediante microscopía electrónica y será de gran utilidad en el diseño de experimentos de mutagénesis dirigida, enfocados en el estudio del ensamblaje de la partícula viral y como base para modelar la estructura de otras especies potyvirales de importancia actual en Colombia como el virus Y de la papa (PVY), virus de la malformación de las hojas del tomate de árbol (TaLMV) y el virus de la mancha anular de la papaya (PRSV).

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Biografía del autor/a

Pablo Gutiérrez, Universidad Nacional de Colombia

Laboratorio de Microbiología Industrial, Facultad de Ciencias. Universidad Nacional de Colombia (Sede Medellín). Medellín (Antioquia), Colombia

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Publicado

2017-10-26

Cómo citar

Gutiérrez, P., Bastos-Aristizábal, S., & Marín, M. (2017). Modelación estructural de la proteína de la cápside del virus a de la papa (PVA, <i>Potyvirus</i>). Actualidades Biológicas, 33(94), 75–84. https://doi.org/10.17533/udea.acbi.14218

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