Finb, a multiple zinc finger protein, represses transcription of the human angiotensinogen gene - PubMed (original) (raw)
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- PMID: 15067362
Finb, a multiple zinc finger protein, represses transcription of the human angiotensinogen gene
Shoichi Date et al. Int J Mol Med. 2004 May.
Abstract
We previously identified a regulatory element at the 3'-downstream region of the human angiotensinogen (hANG) gene. Using this element as a probe by the Southwestern screening, we isolated a cDNA clone, encoding Finb, a transcriptional activator with multiple zinc finger domains. The N-terminal zinc finger domain of Finb bound to the GGATGG sequence within the regulatory element. Unexpectedly, Finb repressed transcription dependent on the regulatory element. Inspection of the 5'-flanking region in the hANG promoter identified the GGATGG-like elements, which prompted us to examine the effect of Finb on the hANG promoter activity. We also found the two Finb binding elements in the 5'-flanking region of the hANG gene by the gel shift assay, both of which were necessary for transcriptional repression of the hANG promoter. These findings suggest that Finb functions as a sequence-specific transcriptional repressor of the hANG gene.
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