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Evolución basada en la estructura de los inhibidores de la transferasa O-GlcNAc de baja nanomolaridad
Sara E S Martin1, Zhi-Wei Tan1, Harri M Itkonen1
1Department of Microbiology , Harvard Medical School , Boston , Massachusetts 02115 , United States.
Journal of the American Chemical Society
|October 5, 2018
Resumen
Los investigadores desarrollaron inhibidores potentes y permeables a las células para la N-acetilglucosamina transferasa (OGT). Estos nuevos compuestos se dirigen a la OGT
Área de la Ciencia:
- Bioquímica y Biología Molecular
- Enzimología
- Biología Química
Sus antecedentes:
- La glicosilación reversible de proteínas es un proceso regulador clave en los metazoos.
- La N-acetilglucosamina transferasa (OGT) enlazada con O cataliza toda la glucosilación nucleocitoplasmática.
- El desarrollo de inhibidores de la OGT potentes y permeables a las células es crucial para la investigación biológica.
Objetivo del estudio:
- Diseñar y sintetizar inhibidores nuevos, potentes y permeables a las células de la OGT.
- Investigar las relaciones estructura-actividad de los inhibidores de la OGT.
- Proporcionar información sobre la inhibición de las glucosiltransferasas.
Principales métodos:
- Diseño de fármacos basado en la estructura y evolución de los inhibidores de la OGT.
- Ensayos bioquímicos para determinar la potencia inhibidora (por ejemplo, rango nanomolar bajo).
- Ensayos celulares para confirmar la actividad en el objetivo y la permeabilidad celular.
Principales resultados:
- La evolución exitosa basada en la estructura produjo inhibidores de la OGT con baja potencia nanomolar.
- Los compuestos demostraron una actividad celular significativa en el objetivo.
- El estudio proporciona nuevos andamios químicos para la inhibición de la OGT.
Conclusiones:
- Los inhibidores desarrollados son herramientas valiosas para estudiar la función de la OGT.
- Estos hallazgos ofrecen nuevas estrategias para inhibir las glucosiltransferasas, una clase de enzimas desafiantes.
- La investigación avanza en el campo de la biología química y el descubrimiento de fármacos para procesos relacionados con la glucosilación.
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