A simple technique for the prediction of interacting proteins reveals a direct Brn-3a-androgen receptor interaction.
J Biol Chem
; 285(20): 15286-15295, 2010 May 14.
Article
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| MEDLINE
| ID: mdl-20228055
ABSTRACT
The formation of multiprotein complexes constitutes a key step in determining the function of any translated gene product. Thus, the elucidation of interacting partners for a protein of interest is of fundamental importance to cell biology. Here we describe a simple methodology for the prediction of novel interactors. We have applied this to the developmental transcription factor Brn-3a to predict and verify a novel interaction between Brn-3a and the androgen receptor (AR). We demonstrate that these transcription factors form complexes within the nucleus of ND7 neuroblastoma cells, while in vitro pull-down assays show direct association. As a functional consequence of the Brn-3a-AR interaction, the factors bind cooperatively to multiple elements within the promoter of the voltage-gated sodium channel, Nav1.7, leading to a synergistic increase in its expression. Thus, these data define AR as a direct Brn-3a interactor and verify a simple interacting protein prediction methodology that is likely to be useful for many other proteins.
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Receptores Androgénicos
/
Factor de Transcripción Brn-3A
Tipo de estudio:
Prognostic_studies
/
Risk_factors_studies
Límite:
Animals
Idioma:
En
Revista:
J Biol Chem
Año:
2010
Tipo del documento:
Article