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Updated: Mar 27, 2026
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A Deep-sequencing-assisted, Spontaneous Suppressor Screen in the Fission Yeast Schizosaccharomyces pombe
Published on: March 7, 2019
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Una interactoma de fisión de levadura en todo el proteoma revela los principios de la evolución de la red de
Tommy V Vo1, Jishnu Das2, Michael J Meyer3
1Department of Biological Statistics and Computational Biology, Cornell University, Ithaca, NY 14853, USA; Weill Institute for Cell and Molecular Biology, Cornell University, Ithaca, NY 14853, USA; Department of Molecular Biology and Genetics, Cornell University, Ithaca, NY 14853, USA.
Cell
|January 16, 2016
Resumen
FissionNet revela miles de nuevas interacciones de proteínas en la levadura de fisión (S. pombe), descubriendo nuevas vías biológicas y sorprendentes conexiones evolutivas entre la levadura y las proteínas humanas.
Área de la Ciencia:
- Proteomía
- Genética de la levadura
- Biología de los sistemas
Sus antecedentes:
- Comprender las interacciones proteína-proteína es crucial para descifrar las funciones celulares.
- La interactómica comparativa entre especies puede revelar la conservación y la divergencia evolutivas.
- Los organismos modelo como la levadura de fisión (S. pombe) son vitales para el estudio de los procesos biológicos fundamentales.
Objetivo del estudio:
- Construir un mapa integral de interacción de proteínas binarias en todo el proteoma para S. pombe.
- Investigar el nuevo cableado de la red de interacción proteica específica de la especie.
- Explorar la conservación evolutiva de las interacciones proteína-proteína.
Principales métodos:
- Generación de FissionNet, un conjunto de datos de interacción de proteínas binarias de alta calidad para S. pombe.
- Desarrollo de un marco de comparación de la red que tenga en cuenta la sensibilidad y la especificidad del ensayo.
- Cartografía de interactomas entre especies y análisis de los efectos de la duplicación de genes.
Principales resultados:
- FissionNet comprende 2.278 interacciones de S. pombe de alta calidad, con ~ 50% nuevas.
- Se descubrieron nuevas interacciones en el silenciamiento de genes y el empalme pre-ARNm.
- Se reveló una extensa red de conexiones específicas de la especie, con interacciones de S. pombe mejor conservadas en humanos que S. cerevisiae.
Conclusiones:
- FissionNet proporciona un recurso valioso para comprender la función y la evolución de las proteínas.
- La interactómica comparada pone de relieve un importante recableado evolutivo y la coevolución de las proteínas que interactúan.
- Los hallazgos tienen implicaciones para el uso de organismos modelo para estudiar enfermedades humanas.
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