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La comunicación proteína-proteína y la activación de enzimas mediadas por un transductor químico sintético

Ronny Peri-Naor¹, Tal Ilani¹, Leila Motiei¹

¹†Departments of Organic Chemistry and ‡Structural Biology, The Weizmann Institute of Science, Rehovot 76100, Israel.

Journal of the American Chemical Society

|May 9, 2015

Resumen

Los investigadores diseñaron un transductor químico sintético para crear nuevas vías de comunicación de proteínas. Este sistema permite un control programable sobre la actividad enzimática y la activación de fármacos, abriendo nuevas vías en la ingeniería molecular.

Área de la Ciencia:

Biología sintética Biología sintética.
La ingeniería molecular es una ingeniería molecular.
La bioquímica es la bioquímica.

Sus antecedentes:

Las interacciones proteína-proteína son cruciales para las funciones celulares.
Los métodos existentes para controlar la actividad de las proteínas son limitados.
Los canales de comunicación no naturales entre las proteínas son deseables para nuevas aplicaciones.

Objetivo del estudio:

Para diseñar y caracterizar un transductor químico sintético.
Establecer un canal de comunicación antinatural entre el factor de crecimiento derivado de las plaquetas y la glutatión-s-transferasa (GST).
Para demostrar el control programable sobre la actividad de la enzima y la activación del prodrug.

Principales métodos:

Diseño de una molécula de transductor químico sintético.
Experimentos in vitro para probar las interacciones de proteínas y la activación de enzimas.
Utilizando oligonucleótidos para el encendido/apagado de la actividad GST.
Demostración de la activación programable de un prodrug utilizando una máquina molecular.

Principales resultados:

Diseñó con éxito un transductor químico que permite la comunicación entre proteínas distintas.
Se demostró que el factor de crecimiento derivado de las plaquetas puede desencadenar la actividad catalítica de GST a través del transductor.
Mostró un preciso control de encendido/apagado de la actividad GST utilizando oligonucleótidos específicos.
Valida el potencial para la activación programable de un prodrogo a través de la regulación enzimática.

Conclusiones:

Los transductores químicos sintéticos pueden establecer nuevas y controlables vías de comunicación de proteínas.
Esta tecnología permite una regulación precisa de la función de las enzimas.
El sistema es prometedor para la activación programable de prodrogas y máquinas moleculares avanzadas.

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