Utilization of signal transduction pathway by the human T-cell leukemia virus type I transcriptional activator tax

Utilization of signal transduction pathway by the human T-cell leukemia virus type I transcriptional activator tax
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人T细胞白血病病毒I型转录激活因子对信号转导途径的利用

DOI:
10.1128/jvi.63.9.3761-3768.1989
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发表时间:
1989
影响因子:
5.4
通讯作者:
R. Roeder
R. Roeder
中科院分区:
医学2区
文献类型:
--
作者:
T. Tan;R. Jia;R. Roeder

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人T细胞白血病病毒I型(HTLV-I)反式激活因子(Tax)诱导增强子定位于长末端重复序列内的21个碱基对重复序列的三个拷贝。有趣的是,在21个碱基对的税收响应元件(TRE)的中心发现的TGACG基序也存在于环AMP(cAMP)响应元件(克雷斯)和激活转录因子(ATF)结合位点。在这项研究中,我们证明了三种TREB结合蛋白,TREB-1,TREB-2和TREB-3,也结合到各种克雷斯和ATF结合位点,并且TREs可以赋予异源启动子对各种诱导剂的响应性,包括税收,cAMP和E1 a。此外,HTLV-1启动子的转录激活税可以抑制几种蛋白激酶抑制剂,包括桑戈霉素。我们的结果表明,TRE、克雷斯和ATF结合位点是相似的顺式作用元件,并进一步表明(i)税收对HTLV-I启动子的转录激活涉及蛋白激酶的作用,以及(ii)税收、cAMP的诱导和E1 a可能由不同的因子或激酶介导。
The human T-cell leukemia virus type I (HTLV-I) trans-activator (tax)-inducible enhancer was localized to three copies of 21-base-pair repeats within the long terminal repeat. Interestingly, the TGACG motif found in the center of the 21-base-pair tax-responsive element (TRE) is also present in the cyclic AMP (cAMP)-responsive elements (CREs) and activating transcription factor (ATF)-binding sites. In this study, we demonstrate that the three TRE-binding proteins, TREB-1, TREB-2, and TREB-3, also bind to various CREs and ATF-binding sites and that the TREs can confer upon a heterologous promoter responsiveness to various inducing agents, including tax, cAMP, and E1a. Furthermore, the transcriptional activation of the HTLV-I promoter by tax can be inhibited by several protein kinase inhibitors, including sangivamycin. Our results indicate that the TREs, CREs, and ATF-binding sites are similar cis-acting elements and further suggest (i) that the transcriptional activation of the HTLV-I promoter by tax involves the action of a protein kinase and (ii) that induction by tax, cAMP, and E1a might be mediated by distinct factors or kinases.
DOI: 10.1073/pnas.83.18.6682
发表时间: 1986-09-01
影响因子: 11.1
作者:
MONTMINY, MR;SEVARINO, KA;GOODMAN, RH
通讯作者: GOODMAN, RH
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DOI: 10.1101/gad.2.8.975
发表时间: 1988
影响因子: 10.5
作者:
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DOI: --
发表时间: 1988
期刊: The Journal of biological chemistry
影响因子: --
作者:
Loomis,CR;Bell,RM
通讯作者: Bell,RM
人类T细胞白血病病毒基因表达的调节需要多个序列元件。
DOI: 10.1073/pnas.84.14.4919
发表时间: 1987
影响因子: 11.1
作者:
Rosen,CA;Park,R;Sodroski,JG;Haseltine,WA
通讯作者: Haseltine,WA
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DOI: 10.1126/science.2996140
发表时间: 1985
期刊: Science (New York, N.Y.)
影响因子: --
作者:
Chen,IS;Cann,AJ;Shah,NP;Gaynor,RB
通讯作者: Gaynor,RB