Abstract：
:Tax oncoprotein of Human T-lymphotropic virus 1 (HTLV-1) has been proposed to dysregulate the expression of a number of cellular genes, many of which play a critical role for cell proliferation. Our initial data demonstrated that the immediate-early gene butyrate response factor 1 ( BRF1) was upregulated in HTLV-1-infected cells. The ensuing studies revealed that the effect of Tax was mediated through two transcription elements. The more proximal element, located in the vicinity of TATA box, accounted for the main Tax transactivating effect, and it appeared to be a novel transcription factor-binding site. It involved the CCTCCTC sequence (nt -59/-53, relative to transcription start site) and was dubbed BRF1 Tax-responsive site (BTRS). The cellular protein(s) recruited into the formation of DNA-protein complex at this binding site were not identified. The other element, located further upstream, was a consensus cAMP-responsive site (CRE) TGACGTCA, spanning positions -400 to -393. CRE-binding protein (CREB) was found to mediate the transactivating effect of Tax at this site. Our results present the first evidence that the Tax transactivator has a capability to modulate the expression of BRF1 and that this effect is mediated by CRE and a novel BTRS motifs.
journal_name
Arch Viroljournal_title
Archives of virologyauthors
Li B,Fink T,Ebbesen P,Liu XD,Zachar Vdoi
10.1007/s00705-003-0114-9keywords:
subject
Has Abstractpub_date
2003-09-01 00:00:00pages
1787-804issue
9eissn
0304-8608issn
1432-8798journal_volume
148pub_type
杂志文章abstract：:Porcine epidemic diarrhea virus (PEDV) causes significant loss to the swine industry. The emergence of novel PEDV strains in recent years has decreased the effectiveness of PEDV vaccines. We have developed a live recombinant vaccine, a swinepox virus vector that expresses a truncated S protein (rSPV-St) from a recent ...
journal_title：Archives of virology
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journal_title：Archives of virology
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pub_type： 杂志文章
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pub_type： 杂志文章
doi：10.1007/BF01314794
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pub_type： 杂志文章
doi：10.1007/s00705-006-0880-2
更新日期：2007-01-01 00:00:00
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journal_title：Archives of virology
pub_type： 杂志文章
doi：10.1007/BF01310963
更新日期：1985-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s00705-008-0154-2
更新日期：2008-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s00705-015-2451-x
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journal_title：Archives of virology
pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Archives of virology
pub_type： 杂志文章
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pub_type： 杂志文章
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journal_title：Archives of virology
pub_type： 杂志文章
doi：10.1007/BF01316751
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pub_type： 杂志文章
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journal_title：Archives of virology
pub_type： 杂志文章
doi：10.1007/s00705-006-0735-x
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