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Identification of Novel CK2 Kinase Substrates Using a Versatile Biochemical Approach
Published on: February 21, 2019
Identificación global de los sustratos modulares de la ligasa cullin-RING.
Michael J Emanuele1, Andrew E H Elia, Qikai Xu
1Division of Genetics, Brigham and Women's Hospital, Boston, MA 02115, USA.
Cell
|October 4, 2011
Resumen
Las ligasas Cullin-RING (CRL) regulan cientos de proteínas, incluidos sustratos conocidos y nuevos como NUSAP1. Esto revela la ubicuidad del LCR.
Área de la Ciencia:
- Biología Molecular Biología Molecular
- Biología celular Biología celular.
- La bioquímica es la bioquímica.
Sus antecedentes:
- Las ligasas Cullin-RING (CRL) son la familia más grande de ligasas E3 ubiquitina en los eucariotas.
- La identificación de los sustratos de los LCR es crucial para comprender la regulación del proteoma.
Objetivo del estudio:
- Para identificar sustratos de CRL y entender su papel en los procesos celulares.
- Investigar la regulación de NUSAP1 por los LCR.
Principales métodos:
- Inactivación genética y farmacológica de Cullin.
- Ensayos genéticos (GPS) y proteómicos (QUAINT).
- Análisis de la estabilidad de las proteínas y la ubicuidad.
Principales resultados:
- Se identificaron cientos de proteínas reguladas por el LCR, incluidos sustratos conocidos y nuevos.
- NUSAP1 identificado como un substrato de SCF ((Cyclin F) durante el ciclo celular (S y G2) y el daño al ADN.
- Los sustratos regulados se enriquecen en redes de interacción de proteínas.
Conclusiones:
- La ubicuidad de CRL juega un papel amplio en la biología celular.
- Los sustratos identificados proporcionan indicadores clave de la fisiología celular.
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