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CHARACTERIZATION OF THE MINIMAL ELEMENTS OF THE HEPATITIS-B VIRUS LARGE SURFACE-ANTIGEN PROMOTER
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UNSPECIFIED (1994) CHARACTERIZATION OF THE MINIMAL ELEMENTS OF THE HEPATITIS-B VIRUS LARGE SURFACE-ANTIGEN PROMOTER. JOURNAL OF GENERAL VIROLOGY, 75 (Part 10). pp. 2671-2679. ISSN 0022-1317.
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Abstract
It has been demonstrated that the hepatocyte nuclear factor 1 (HNF1) binding site is critical for the majority of the hepatitis B virus (HBV) large surface antigen promoter activity in differentiated hepatoma cell lines. Examination of a series of clustered point mutations in the minimal large surface antigen promoter demonstrated that the HNF1 and TATA box binding sites are the major regulatory elements required for transcription from this promoter. Synthetic promoter constructs containing the large surface antigen promoter HNF1 binding site and TATA box element upstream of the luciferase open reading frame were tested for their transcriptional activities in HepG2. 1 cells in the absence or presence of an HNF1 expression vector. These synthetic promoter constructs displayed a similar level of transcriptional activity and induction by HNF1 in comparison with the full-length large surface antigen promoter, suggesting that additional HBV sequences are dispensable for full transcriptional activity. The distance between the HNF1 binding site and TATA box element in the synthetic promoter constructs appeared to influence the transcriptional activity modestly and in a periodic manner.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | T Technology > TP Chemical technology Q Science > QR Microbiology > QR355 Virology |
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| Journal or Publication Title: | JOURNAL OF GENERAL VIROLOGY | ||||
| Publisher: | SOC GENERAL MICROBIOLOGY | ||||
| ISSN: | 0022-1317 | ||||
| Official Date: | October 1994 | ||||
| Dates: |
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| Volume: | 75 | ||||
| Number: | Part 10 | ||||
| Number of Pages: | 9 | ||||
| Page Range: | pp. 2671-2679 | ||||
| Publication Status: | Published |
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