Identification of interacting proteins of retinoid-related orphan nuclear receptor gamma in HepG2 cells.
BMB Rep
; 45(6): 331-6, 2012 Jun.
Article
en En
| MEDLINE
| ID: mdl-22732217
ABSTRACT
The retinoid-related orphan nuclear receptor gamma (ROR γ) plays critical roles in regulation of development, immunity and metabolism. As transcription factor usually forms a protein complex to function, thus capturing and dissecting of the ROR γ protein complex will be helpful for exploring the mechanisms underlying those functions. After construction of the recombinant tandem affinity purification (TAP) plasmid, pMSCVpuro ROR γ-CTAP(SG), the nuclear localization of ROR γ-CTAP(SG) fusion protein was verified. Following isolation of ROR γ protein complex by TAP strategy, seven candidate interacting proteins were identified. Finally, the heat shock protein 90 (HSP90) and receptor-interacting protein 140 (RIP140) were confirmed to interplay with ROR γ by co-immunoprecipitation. Interference of HSP90 or/and RIP140 genes resulted in dramatically decreased expression of CYP2C8 gene, the ROR γ target gene. Data from this study demonstrate that HSP90 and RIP140 proteins interact with ROR γ protein in a complex format and function as co-activators in the ROR γ-mediated regulatory processes of HepG2 cells.
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Bases de datos:
MEDLINE
Asunto principal:
Proteínas HSP90 de Choque Térmico
/
Miembro 3 del Grupo F de la Subfamilia 1 de Receptores Nucleares
/
Co-Represor 1 de Receptor Nuclear
Tipo de estudio:
Diagnostic_studies
/
Prognostic_studies
Límite:
Humans
Idioma:
En
Revista:
BMB Rep
Asunto de la revista:
BIOLOGIA MOLECULAR
/
BIOQUIMICA
Año:
2012
Tipo del documento:
Article
País de afiliación:
China