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Smoothened codifica una proteína serpentina parecida a un receptor requerida para la señalización del erizo
1Molecular Embryology Laboratory, Imperial Cancer Research Fund, London, UK.
Nature
|August 8, 1996
Resumen
El gen de segmento-polaridad suavizado es crucial para la señalización del erizo en el desarrollo. Proteína suavizada y suavizada.
Área de la Ciencia:
- Biología del desarrollo Biología del desarrollo.
- Biología Molecular Biología Molecular
- Genética La genética.
Sus antecedentes:
- Las proteínas de erizo son moléculas de señalización clave en el desarrollo embrionario.
- Los mecanismos precisos de la transducción de la señal del erizo siguen siendo en gran medida desconocidos.
- Los genes de polaridad de segmento, incluido el erizo, regulan la formación de patrones en Drosophila.
Objetivo del estudio:
- Para investigar el papel del gen de segmento-polaridad suavizado en la transducción de la señal del erizo.
- Para dilucidar la función molecular del suavizado en la respuesta celular a la señalización del erizo.
Principales métodos:
- Análisis de la función del gen suavizado en el desarrollo del disco embrionario e imaginal de Drosophila.
- Análisis de secuencia del gen suavizado y su proteína codificada.
Principales resultados:
- El suavizado es esencial para la respuesta celular a la señalización del erizo.
- La proteína suavizada posee siete dominios transmembrana, características de los receptores acoplados a la proteína G.
- Esta característica estructural sugiere que Smoothened puede funcionar como un receptor para el erizo.
Conclusiones:
- El suavizado juega un papel crítico en la mediación de la transducción de la señal del erizo.
- La similitud estructural con los receptores acoplados a la proteína G proporciona una base molecular para la función de Smoothened como un receptor potencial de erizo.
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