期刊文献+

ZAP融合蛋白抑制HIV病毒模型的构建及功能分析

Fusing ZAP to HIV RNA Binding Proteins to Inhibit HIV
在线阅读 下载PDF
导出
摘要 ZAP是一种抗病毒因子,能够特异性结合病毒RNA并招募细胞中的RNA酶降解所结合的靶RNA,从而抑制某些病毒的复制,如鼠白血病病毒(MLV)、辛德比斯病毒(SIN).ZAP对HIV病毒抑制作用并不明显.Tat和Rev是HIV编码的两种可以特异性结合HIVRNA的蛋白质,将它们与ZAP构建成融合蛋白,使得融合蛋白通过Tat或Rev结合HIVRNA并通过ZAP降解HIVRNA,从而抑制HIV假病毒载体携带基因的表达.这一结果为抑制HIV病毒提供了一个新思路,也支持了ZAP招募mRNA降解机器降解靶RNA的模型. The zinc finger antiviral protein (ZAP) specifically inhibits the replication of Moloney murine leukemia virus (MLV) and Sindbis virus (SIN), but has very modest inhibitory effect on HIV. Previous studies suggest that ZAP directly binds-to the viral RNA and recruit the RNA degradation machinery to degrade the target RNA. The HIV-1 Tat and Rev are regulatory proteins which bind to HIV RNA. Tat and Rev were fused with ZAP in various manners. Two fusion proteins, ZAP-Tat and ZAP-Rev were found to be able to inhibit the expression HIV-1 vector.
出处 《生物化学与生物物理进展》 SCIE CAS CSCD 北大核心 2007年第1期50-56,共7页 Progress In Biochemistry and Biophysics
基金 国家自然科学基金资助项目(30470092).~~
关键词 ZAP HIV Tat/Rev 融合蛋白 MRNA降解 ZAP, HIV, Tat/Rev, fusion protein, mRNA degradation
  • 相关文献

参考文献11

  • 1Taube R, Fujinaga K, Wimmer J, et al. Tat transactivation: a model for the regulation of eukaryotic transcriptional elongation. Virology,1999, 264 (2): 245-253.
  • 2Feinberg M B, Jarrett R F, Aldovini A, et al. HTLV- Ⅲ expression and production involve complex regulation at the levels of splicing and translation of viral RNA. Cell, 1986, 46 (6): 807-817.
  • 3Arrigo S J, Chen I S. Rev is necessary for translation but not cytoplasmic accumulation of HIV-1 vif, vpr, and env/vpu 2 RNAs.Genes Dev, 1991, 5 (5): 808-819.
  • 4Zolotukhin A S, Michalowski D, Bear J, et al. PSF acts through the human immunodeficiency virus type 1 mRNA instability elements to regulate virus expression. Mol Cell Biol, 2003, 23 (18): 6618-6630.
  • 5Sanchez-Velar N, Udofia E B, Yu Z, et al. hRIP, a cellular cofactor for Rev function, promotes release of HIV RNAs from the perinuclear region. Genes Dev, 2004, 18 (1): 23-34.
  • 6Gao G, Guo X, Goff S P. Inhibition of retroviral RNA production by ZAP, a CCCH-type zinc finger protein. Science, 2002, 297(5587): 1703- 1706.
  • 7Guo X, Carroll J W, Macdonald M R, et al. The zinc finger antiviral protein directly binds to specific viral mRNAs through the CCCH zinc finger motifs. J Virol, 2004, 78 (23): 12781 - 12787.
  • 8Gatignol A, Buckler-White A, Berkhout B, et al. Characterization of a human TAR RNA-binding protein that activates the HIV-1 LTR.Science, 1991, 251 (5001): 1597-1600.
  • 9Derse D, Hill S A, Lloyd P A, et al. Examining human T-lymphotropic virus type 1 infection and replication by cell-free infection with recombinant virus vectors. J Virol, 2001, 75 (18):8461-8468.
  • 10Ahmad N, Venkatesan S. Nef protein of HIV-1 is a transcriptional repressor of HIV-1 LTR. Science, 1988, 241 (4872): 1481-1485

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部