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El neu oncogene codifica una proteína relacionada con el receptor del factor de crecimiento epidérmico
Nature
|January 16, 1986
Resumen
El neu oncogene, implicado en los tumores cerebrales, codifica una proteína similar al receptor EGF. Esto sugiere que neu puede ser un receptor de un factor de crecimiento desconocido, avanzando en la investigación del cáncer.
Área de la Ciencia:
- Oncología Oncología.
- Biología Molecular Biología Molecular
- Genética La genética.
Sus antecedentes:
- El neu oncogene se activa con frecuencia en neuromas y glioblastomas de rata.
- El neu oncogene está relacionado con, pero es distinto del gen receptor del factor de crecimiento epidérmico (EGF) (c-erb-B).
Objetivo del estudio:
- Para caracterizar el neu oncogene y su producto proteico.
- Investigar la relación estructural y funcional entre el nuevo gen y el receptor del FEAG.
Principales métodos:
- Aislamiento y secuenciación de un nuevo clon de ADN complementario de una línea celular transformada.
- Ensayo de formación de foco para evaluar la actividad biológica.
- Análisis de secuencia y comparación con el receptor del FEAG.
Principales resultados:
- Se aisló un nuevo clon de ADN complementario con actividad de formación de foco.
- La secuencia de nucleótidos del nuevo clon predice una proteína transmembrana de 1.260 aminoácidos.
- La proteína neu comparte una identidad de secuencia significativa con el receptor del FEAG, particularmente en el dominio de la tirosina quinasa (más del 80%).
Conclusiones:
- El nuevo gen codifica una proteína transmembrana estructuralmente similar al receptor EGF.
- El nuevo gen probablemente codifica el receptor de un factor de crecimiento aún no identificado.
- Estos hallazgos proporcionan información sobre la activación oncogénica y los posibles objetivos terapéuticos en los tumores cerebrales.
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