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Article

Regulation of the HMOX1 gene by the transcription factor AP-2δ with unique DNA binding site

  • Authors:
    • Liyun Sun
    • Yuxia Zhao
    • Shaohua Gu
    • Yumin Mao
    • Chaoneng Ji
    • Xiujuan Xin
  • View Affiliations / Copyright

    Affiliations: State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China, State Key Laboratory of Genetic Engineering, Institute of Genetics, School of Life Sciences, Fudan University, Shanghai 200433, P.R. China
  • Pages: 423-428
    |
    Published online on: April 28, 2014
       https://doi.org/10.3892/mmr.2014.2196
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Abstract

AP-2 transcription factors are important sequence-specific DNA-binding regulators that are expressed in the neural crest and other tissues during mammalian development. The human AP-2 family of transcription factors consists of five members, AP-2α, -β, -γ, -δ and -ε, which have an important role in the regulation of gene expression during development and in the differentiation of multiple organs and tissues. The present study aimed to investigate the mechanism by which AP-2δ mediates heme oxygenase-1 (HMOX1) gene expression. It was identified that the human AP-2δ protein exhibited weak binding to a suboptimal AP-2 sequence, 5'-GCCN3GGC-3', to which all other AP-2 proteins bind in vitro, providing the first example of DNA target specificity amongst the AP-2 family. AP-2δ protein bound to an optimized AP-2 consensus DNA sequence, 5'-GCCTGAGGC-3', in vitro and transactivated gene expression in eukaryotic cells. The transactivation domain of Ap-2δ differs notably from those in the other AP-2 proteins as it lacks the PY motif (XPPXY) and several other conserved residues that are important for the transcriptional activity of AP-2 proteins, yet it functions as an equally strong activator.
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Copy and paste a formatted citation
Spandidos Publications style
Sun L, Zhao Y, Gu S, Mao Y, Ji C and Xin X: Regulation of the HMOX1 gene by the transcription factor AP-2δ with unique DNA binding site. Mol Med Rep 10: 423-428, 2014.
APA
Sun, L., Zhao, Y., Gu, S., Mao, Y., Ji, C., & Xin, X. (2014). Regulation of the HMOX1 gene by the transcription factor AP-2δ with unique DNA binding site. Molecular Medicine Reports, 10, 423-428. https://doi.org/10.3892/mmr.2014.2196
MLA
Sun, L., Zhao, Y., Gu, S., Mao, Y., Ji, C., Xin, X."Regulation of the HMOX1 gene by the transcription factor AP-2δ with unique DNA binding site". Molecular Medicine Reports 10.1 (2014): 423-428.
Chicago
Sun, L., Zhao, Y., Gu, S., Mao, Y., Ji, C., Xin, X."Regulation of the HMOX1 gene by the transcription factor AP-2δ with unique DNA binding site". Molecular Medicine Reports 10, no. 1 (2014): 423-428. https://doi.org/10.3892/mmr.2014.2196
Copy and paste a formatted citation
x
Spandidos Publications style
Sun L, Zhao Y, Gu S, Mao Y, Ji C and Xin X: Regulation of the HMOX1 gene by the transcription factor AP-2δ with unique DNA binding site. Mol Med Rep 10: 423-428, 2014.
APA
Sun, L., Zhao, Y., Gu, S., Mao, Y., Ji, C., & Xin, X. (2014). Regulation of the HMOX1 gene by the transcription factor AP-2δ with unique DNA binding site. Molecular Medicine Reports, 10, 423-428. https://doi.org/10.3892/mmr.2014.2196
MLA
Sun, L., Zhao, Y., Gu, S., Mao, Y., Ji, C., Xin, X."Regulation of the HMOX1 gene by the transcription factor AP-2δ with unique DNA binding site". Molecular Medicine Reports 10.1 (2014): 423-428.
Chicago
Sun, L., Zhao, Y., Gu, S., Mao, Y., Ji, C., Xin, X."Regulation of the HMOX1 gene by the transcription factor AP-2δ with unique DNA binding site". Molecular Medicine Reports 10, no. 1 (2014): 423-428. https://doi.org/10.3892/mmr.2014.2196
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