Abstract:
:We have previously shown that the nonconserved carboxy-terminal exon of the adenovirus type 2 E1A-289R protein contains two interchangeable sequence elements, auxiliary region (AR) 1 and AR2, that are required for efficient CR3-mediated transcriptional activation of the viral E4 promoter (M. Bondesson, C. Svensson, S. Linder, and G. Akusjärvi, EMBO J. 11:3347-3354, 1992). Here we show that CR3-mediated transactivation of all adenovirus early promoters and the HSP70 promoter requires the AR1 element. We further show that AR2 can substitute for AR1 only when artificially juxtaposed to CR3. AR1 consists of six tandem glutamic acid-proline (EP) repeats and is positioned immediately downstream of CR3. Genetic dissection of AR1 showed that the number of EP repeats in AR1 is critical for CR3 function. Thus, reducing or increasing the number of EP repeats reduces the CR3 transactivation capacity. Furthermore, the introduction of amino acid substitutions into AR1 suggested that the net negative charge in AR1 is of critical importance for its function as an enhancer of CR3-mediated transcriptional activation. Using an in vitro binding approach, we showed that the AR1 element is not part of the CR3 promoter localization signal mediating contact with the Sp1, ATF-2, or c-Jun upstream-binding transcription factors. Previous studies have suggested that the 49-amino-acid sequence constituting CR3 represents the minimal domain required for E1A-induced activation of viral early promoters. Since AR1 was required for efficient CR3-mediated transcriptional activation of all tested promoters, we suggest that the carboxy-terminal boundary for the CR3 transactivation domain should be extended to include the AR1 element.
journal_name
J Viroljournal_title
Journal of virologyauthors
Ström AC,Ohlsson P,Akusjärvi Gdoi
10.1128/JVI.72.7.5978-5983.1998subject
Has Abstractpub_date
1998-07-01 00:00:00pages
5978-83issue
7eissn
0022-538Xissn
1098-5514journal_volume
72pub_type
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doi:10.1128/JVI.62.11.4280-4287.1988
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doi:10.1128/JVI.64.6.3104-3107.1990
更新日期:1990-06-01 00:00:00
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doi:10.1128/JVI.65.2.632-640.1991
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pub_type: 杂志文章
doi:10.1128/JVI.56.1.312-316.1985
更新日期:1985-10-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.51.3.876-879.1984
更新日期:1984-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.01492-20
更新日期:2021-01-13 00:00:00
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pub_type: 杂志文章
doi:10.1128/JVI.06243-11
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.12.7080-7088.1992
更新日期:1992-12-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.02621-07
更新日期:2008-04-01 00:00:00
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更新日期:2003-09-01 00:00:00
abstract::This report describes the results of experiments to determine whether chimeras between a retrovirus and portions of Ty3 are active in vivo. A chimera between Ty3 and a Neo(r)-marked Moloney murine leukemia virus (M-MuLV) was constructed. The C-terminal domain of M-MuLV integrase (IN) was replaced with the C-terminal d...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.72.5.4297-4307.1998
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journal_title:Journal of virology
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journal_title:Journal of virology
pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.66.7.4470-4478.1992
更新日期:1992-07-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.68.11.6985-6993.1994
更新日期:1994-11-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
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更新日期:2010-04-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/jvi.75.18.8449-8460.2001
更新日期:2001-09-01 00:00:00
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journal_title:Journal of virology
pub_type: 杂志文章
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journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.63.10.4303-4310.1989
更新日期:1989-10-01 00:00:00
abstract::The complete nucleotide sequence of the NS mRNA of vesicular stomatitis virus (New Jersey serotype) was established from two cDNA clones spanning the entire coding region of the mRNA. The gene is 856 nucleotides long and can code for a polypeptide of 274 amino acids. Comparison with the nucleotide sequence of the NS g...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.55.1.60-66.1985
更新日期:1985-07-01 00:00:00
abstract::Mammalian cells infected with herpes simplex virus (HSV) express a novel ribonucleotide reductase which is biochemically and immunologically distinct from the uninfected-cell enzyme. Using polyvalent rabbit antiserum raised against partially purified HSV type 2 reductase as well as monoclonal antibodies to HSV type 1 ...
journal_title:Journal of virology
pub_type: 杂志文章
doi:10.1128/JVI.49.2.591-593.1984
更新日期:1984-02-01 00:00:00