PBX1 and MEIS1 up-regulate SOX3 gene expression by direct interaction with a consensus binding site within the basal promoter region
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2010
Чланак у часопису (Објављена верзија)
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Sox3/SOX3 [SRY (sex determining region Y)-box 3] is considered to be one of the earliest neural markers in vertebrates, playing a role in specifying neuronal fate. We have previously reported characterization of the SOX3 promoter and demonstrated that the general transcription factors NF-Y (nuclear factor-Y), Sp1 (specificity protein 1) and USF (upstream stimulatory factor) are involved in transcriptional regulation of SOX3 promoter activity. In the present study we provide the first evidence that the TALE (three-amino-acid loop extension) transcription factors PBX1 (pre-B-cell leukaemia homeobox 1) and MEIS1 (myeloid ecotropic viral integration site 1 homologue) participate in regulating human SOX3 gene expression in NT2/D1 cells by direct interaction with the consensus PBX/MEIS-binding site, which is conserved in all mammalian orthologue promoters analysed. PBX1 is present in the protein complex formed at this site with nuclear proteins from uninduced cells, whereas both PBX1 and MEI...S1 proteins were detected in the complex created with extract from RA (retinoic acid)-induced NT2/D1 cells. By functional analysis we also showed that mutations of the PBX1/MEIS1-binding sites resulted in profound reduction of SOX3 promoter responsiveness to RA. Finally, we demonstrated that overexpressed PBX1 and MEIS1 increased endogenous SOX3 protein expression in both uninduced and RA-induced NT2/D1 cells. With the results of the present study, for the first time, we have established a functional link between the TALE proteins, PBX1 and MEIS1, and expression of the human SOX3 gene. This link is of particular interest since both TALE family members and members of the SOX superfamily are recognized as important developmental regulators.
Кључне речи:
SRY (sex determining region Y)-box 3 (SOX3) / retinoic acid / pre-B-cell leukaemia homeobox 1 (PBX1) / NT2/D1 cell / myeloid ecotropic viral integration site 1 homologue (MEIS1)Извор:
Biochemical Journal, 2010, 425, 107-116Издавач:
- Portland Press Ltd, London
Финансирање / пројекти:
- Изучавање регулације експресије и функције хуманих SOX гена (RS-MESTD-MPN2006-2010-143028)
DOI: 10.1042/BJ20090694
ISSN: 0264-6021
PubMed: 19799567
WoS: 000273585000011
Scopus: 2-s2.0-72449136368
Институција/група
Institut za molekularnu genetiku i genetičko inženjerstvoTY - JOUR AU - Mojsin, Marija AU - Stevanović, Milena PY - 2010 UR - https://imagine.imgge.bg.ac.rs/handle/123456789/404 AB - Sox3/SOX3 [SRY (sex determining region Y)-box 3] is considered to be one of the earliest neural markers in vertebrates, playing a role in specifying neuronal fate. We have previously reported characterization of the SOX3 promoter and demonstrated that the general transcription factors NF-Y (nuclear factor-Y), Sp1 (specificity protein 1) and USF (upstream stimulatory factor) are involved in transcriptional regulation of SOX3 promoter activity. In the present study we provide the first evidence that the TALE (three-amino-acid loop extension) transcription factors PBX1 (pre-B-cell leukaemia homeobox 1) and MEIS1 (myeloid ecotropic viral integration site 1 homologue) participate in regulating human SOX3 gene expression in NT2/D1 cells by direct interaction with the consensus PBX/MEIS-binding site, which is conserved in all mammalian orthologue promoters analysed. PBX1 is present in the protein complex formed at this site with nuclear proteins from uninduced cells, whereas both PBX1 and MEIS1 proteins were detected in the complex created with extract from RA (retinoic acid)-induced NT2/D1 cells. By functional analysis we also showed that mutations of the PBX1/MEIS1-binding sites resulted in profound reduction of SOX3 promoter responsiveness to RA. Finally, we demonstrated that overexpressed PBX1 and MEIS1 increased endogenous SOX3 protein expression in both uninduced and RA-induced NT2/D1 cells. With the results of the present study, for the first time, we have established a functional link between the TALE proteins, PBX1 and MEIS1, and expression of the human SOX3 gene. This link is of particular interest since both TALE family members and members of the SOX superfamily are recognized as important developmental regulators. PB - Portland Press Ltd, London T2 - Biochemical Journal T1 - PBX1 and MEIS1 up-regulate SOX3 gene expression by direct interaction with a consensus binding site within the basal promoter region EP - 116 SP - 107 VL - 425 DO - 10.1042/BJ20090694 ER -
@article{ author = "Mojsin, Marija and Stevanović, Milena", year = "2010", abstract = "Sox3/SOX3 [SRY (sex determining region Y)-box 3] is considered to be one of the earliest neural markers in vertebrates, playing a role in specifying neuronal fate. We have previously reported characterization of the SOX3 promoter and demonstrated that the general transcription factors NF-Y (nuclear factor-Y), Sp1 (specificity protein 1) and USF (upstream stimulatory factor) are involved in transcriptional regulation of SOX3 promoter activity. In the present study we provide the first evidence that the TALE (three-amino-acid loop extension) transcription factors PBX1 (pre-B-cell leukaemia homeobox 1) and MEIS1 (myeloid ecotropic viral integration site 1 homologue) participate in regulating human SOX3 gene expression in NT2/D1 cells by direct interaction with the consensus PBX/MEIS-binding site, which is conserved in all mammalian orthologue promoters analysed. PBX1 is present in the protein complex formed at this site with nuclear proteins from uninduced cells, whereas both PBX1 and MEIS1 proteins were detected in the complex created with extract from RA (retinoic acid)-induced NT2/D1 cells. By functional analysis we also showed that mutations of the PBX1/MEIS1-binding sites resulted in profound reduction of SOX3 promoter responsiveness to RA. Finally, we demonstrated that overexpressed PBX1 and MEIS1 increased endogenous SOX3 protein expression in both uninduced and RA-induced NT2/D1 cells. With the results of the present study, for the first time, we have established a functional link between the TALE proteins, PBX1 and MEIS1, and expression of the human SOX3 gene. This link is of particular interest since both TALE family members and members of the SOX superfamily are recognized as important developmental regulators.", publisher = "Portland Press Ltd, London", journal = "Biochemical Journal", title = "PBX1 and MEIS1 up-regulate SOX3 gene expression by direct interaction with a consensus binding site within the basal promoter region", pages = "116-107", volume = "425", doi = "10.1042/BJ20090694" }
Mojsin, M.,& Stevanović, M.. (2010). PBX1 and MEIS1 up-regulate SOX3 gene expression by direct interaction with a consensus binding site within the basal promoter region. in Biochemical Journal Portland Press Ltd, London., 425, 107-116. https://doi.org/10.1042/BJ20090694
Mojsin M, Stevanović M. PBX1 and MEIS1 up-regulate SOX3 gene expression by direct interaction with a consensus binding site within the basal promoter region. in Biochemical Journal. 2010;425:107-116. doi:10.1042/BJ20090694 .
Mojsin, Marija, Stevanović, Milena, "PBX1 and MEIS1 up-regulate SOX3 gene expression by direct interaction with a consensus binding site within the basal promoter region" in Biochemical Journal, 425 (2010):107-116, https://doi.org/10.1042/BJ20090694 . .