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Cloning and regulation of pig estrogen related receptor β gene (ESRRB) promoter / 生物工程学报
Chinese Journal of Biotechnology ; (12): 491-500, 2015.
Artículo en Chino | WPRIM | ID: wpr-240625
ABSTRACT
The estrogen related receptor family member Esrrb (Estrogen related receptor β) is a gene that expresses in the early stage of embryo and plays an important role in the core pluripotent network. Its function has been analyzed in human and mouse, although no report so far related to pig. Therefore, to explore its mechanism of transcriptional regulation and expression pattern, we cloned a 3.3 kb pig ESRRB promoter by PCR and constructed the green fluorescence protein (GFP) reporter vector pE3.3. We used these vectors to study the ESRRB expression pattern in 293T, Hela and C2C12. Sequence was analyzed for regulatory elements that share homology to known transcription factor binding sites by TFSEARCH and JASPER program. Some pluripotency related genes such as SMAD, STAT3, MYC, KLF4 and ESRRB have been found within the 3.3 kb sequence by co-transfected pig ESRRB promoter and these potential regulators. We found that ESRRB only expressed in 293T and SMAD could activate ESRRB expression obviously. To determine the core promoter region, a series of ESRRB promoter fragments with gradually truncated 5'-end were produced by PCR and inserted into pGL3-Basic vector. After transient transfection into 293T, dual luciferase assay was used to measure these promoter activities. The result suggested that the core promoter of pig ESRRB located within -25 bp to -269 bp region. These results suggest that these transcription factor binding sites and the core promoter region may be essential for transcriptional regulation of pig ESRRB gene.
Asunto(s)
Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Porcinos / Factores de Transcripción / Sitios de Unión / Células HeLa / Transfección / Regiones Promotoras Genéticas / Clonación Molecular / Receptor beta de Estrógeno / Vectores Genéticos / Genética Límite: Animales / Humanos Idioma: Chino Revista: Chinese Journal of Biotechnology Año: 2015 Tipo del documento: Artículo

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Texto completo: Disponible Índice: WPRIM (Pacífico Occidental) Asunto principal: Porcinos / Factores de Transcripción / Sitios de Unión / Células HeLa / Transfección / Regiones Promotoras Genéticas / Clonación Molecular / Receptor beta de Estrógeno / Vectores Genéticos / Genética Límite: Animales / Humanos Idioma: Chino Revista: Chinese Journal of Biotechnology Año: 2015 Tipo del documento: Artículo