Transcription Regulatory Complex Including YB-1 Controls Expression of Mouse Matrix Metalloproteinase-2 Gene in NIH3T3 Cells
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- Matsumoto Ken-ichi
- Department of Molecular Biology, Graduate School of Pharmaceutical Sciences, Hokkaido University
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- Abiko Shun
- Department of Molecular Biology, Graduate School of Pharmaceutical Sciences, Hokkaido University
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- Ariga Hiroyoshi
- Department of Molecular Biology, Graduate School of Pharmaceutical Sciences, Hokkaido University
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Matrix metalloproteinase 2 (MMP-2) is a metalloproteinase belonging to a family of structurally related zinc-dependent endopeptidases capable of degrading extracellular matrix components. To elucidate the functional promoter of the mouse MMP-2 gene, systematic transient expression analysis of the 5′-flanking region of the MMP-2 gene was performed using serially nested deletions. The deletion analysis indicated that the proximal 327-bp sequence from nucleotide positions −313 to +14 relative to the transcription start site is essential for minimal promoter activity and that a 10-bp sequence of the promoter at positions −939 to −930 is required for high expression level of the MMP-2 gene. The 10-bp fragment functioned as a potent stimulator of heterologous SV40 promoter activity. This element is identical to the YB-1 binding motif (Y-box) present within the responsive element-1 (RE-1), which has been shown to act as a potent cis-activator of transcription of the rat MMP-2 gene. The binding of a nuclear factor(s) to the 10-bp fragment was also revealed by electrophoretic mobility shift assays (EMSAs). Antibody-supershift EMSAs of nuclear extracts from NIH 3T3 cells demonstrated YB-1 binding to the RE-1 sequence. It was concluded that the RE-1 is the conserved element for potent expression of MMP-2 gene among rodents.
収録刊行物
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- Biological & Pharmaceutical Bulletin
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Biological & Pharmaceutical Bulletin 28 (8), 1500-1504, 2005
公益社団法人 日本薬学会
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詳細情報 詳細情報について
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- CRID
- 1390282679604283008
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- NII論文ID
- 120005350118
- 10016667203
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- NII書誌ID
- AA10885497
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- ISSN
- 13475215
- 09186158
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- HANDLE
- 2115/53732
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- NDL書誌ID
- 7372732
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- PubMed
- 16079501
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- 本文言語コード
- en
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- データソース種別
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- IRDB
- NDL
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