Tumor Susceptibility Gene 101 Regulates the Glucocorticoid Receptor through Disorder-Mediated Allostery.
Biochemistry
; 60(21): 1647-1657, 2021 06 01.
Article
en En
| MEDLINE
| ID: mdl-34009973
ABSTRACT
Tumor susceptibility gene 101 (TSG101) is involved in endosomal maturation and has been implicated in the transcriptional regulation of several steroid hormone receptors, although a detailed characterization of such regulation has yet to be conducted. Here we directly measure binding of TSG101 to one steroid hormone receptor, the glucocorticoid receptor (GR). Using biophysical and cellular assays, we show that the coiled-coil domain of TSG101 (1) binds and folds the disordered N-terminal domain of the GR, (2) upon binding improves the DNA binding of the GR in vitro, and (3) enhances the transcriptional activity of the GR in vivo. Our findings suggest that TSG101 is a bona fide transcriptional co-regulator of the GR and reveal how the underlying thermodynamics affect the function of the GR.
Texto completo:
1
Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Factores de Transcripción
/
Receptores de Glucocorticoides
/
Proteínas de Unión al ADN
/
Complejos de Clasificación Endosomal Requeridos para el Transporte
Límite:
Humans
Idioma:
En
Revista:
Biochemistry
Año:
2021
Tipo del documento:
Article
País de afiliación:
Estados Unidos