Characterization of an internal ribosomal entry segment within the 5' leader of avian reticuloendotheliosis virus type A RNA and development of novel MLV-REV-based retroviral vectors.

Characterization of an internal ribosomal entry segment within the 5' leader of avian reticuloendotheliosis virus type A RNA and development of novel MLV-REV-based retroviral vectors.
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禽网状内皮增生病毒 A 型 RNA 5 前导序列内内部核糖体进入片段的表征以及新型基于 MLV-REV 的逆转录病毒载体的开发。

DOI:
10.1089/hum.1997.8.16-1855
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发表时间:
1997
期刊:
影响因子:
4.2
通讯作者:
J. Darlix
J. Darlix
中科院分区:
医学2区
文献类型:
--
作者:
M. López;C. Gabus;J. Darlix

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小鼠白血病病毒(MLV)相关的C型病毒构成了逆转录病毒的主要类别,包括许多内源性和外源性哺乳动物病毒和相关的禽脾坏死病毒(SNV)。MLV相关病毒具有长且多功能的5'非翻译前导序列,其参与病毒生命周期的关键步骤-剪接、翻译、RNA二聚化、腺苷酸化和逆转录。最近的研究表明,Friend鼠白血病病毒和Moloney鼠白血病病毒的5'前导序列可以指导gag前体蛋白的帽非依赖性翻译(Berlioz等人,1995; Vagner等人,1995年b)。这些数据连同结构同源性研究(Koning等人,1992年),促使我们着手寻找新的逆转录病毒起源的内部核糖体进入片段(IRES)。在此,我们描述了禽网状内皮组织增生病病毒A型(REV-A)基因组RNA的5'前导序列中的IRES元件。数据显示,REV-A 5' IRES元件定位在包装/二聚化(E/DLS)序列的下游(Watanabe和Temin,1982; Darlix等人,1992),并且最小IRES序列似乎在5'前导序列的129 nt片段(核苷酸452-580)内,紧邻gag AUG密码子的上游。REV-A IRES已成功用于构建新型高滴度基于MLV的逆转录病毒载体,其含有逆转录病毒来源的一个或多个IRES元件。这些逆转录病毒的构建体,这代表了一个起点,适合于基因治疗的新载体的设计,也有兴趣作为一个模型系统的内部翻译起始及其可能的调控过程中的发展,癌症,或病毒感染。
The murine leukemia virus (MLV)-related type C viruses constitute a major class of retroviruses that includes numerous endogenous and exogenous mammalian viruses and the related avian spleen necrosis virus (SNV). The MLV-related viruses possess a long and multifunctional 5' untranslated leader involved in key steps of the viral life cycle--splicing, translation, RNA dimerization, encapsidation, and reverse transcription. Recent studies have shown that the 5' leader of Friend murine leukemia virus and Moloney murine leukemia virus can direct cap independent translation of gag precursor proteins (Berlioz et al., 1995; Vagner et al., 1995b). These data, together with structural homology studies (Koning et al., 1992), prompted us to undertake a search for new internal ribosome entry segment (IRES) of retroviral origin. Here we describe an IRES element within the 5' leader of avian reticuloendotheliosis virus type A (REV-A) genomic RNA. Data show that the REV-A 5' IRES element maps downstream of the packaging/dimerization (E/DLS) sequence (Watanabe and Temin, 1982; Darlix et al., 1992) and the minimal IRES sequence appears to be within a 129 nt fragment (nucleotides 452-580) of the 5' leader, immediately upstream of the gag AUG codon. The REV-A IRES has been successfully utilized in the construction of novel high titer MLV-based retroviral vectors, containing one or more IRES elements of retroviral origin. These retroviral constructs, which represent a starting point for the design of novel vectors suitable for gene therapy, are also of interest as a model system of internal translation initiation and its possible regulation during development, cancer, or virus infection.
同源基因 Antennapedia mRNA 包含 5-非编码序列,通过内部核糖体结合赋予翻译起始。
DOI: 10.1101/gad.6.9.1643
发表时间: 1992
影响因子: 10.5
作者:
Oh,SK;Scott,MP;Sarnow,P
通讯作者: Sarnow,P
DOI: 10.3109/10409239209082567
发表时间: 1992
影响因子: 6.5
作者:
M. Kozak
通讯作者: M. Kozak
DOI: 10.1016/s0021-9258(18)33352-0
发表时间: 1982-12
期刊: The Journal of biological chemistry
影响因子: --
作者:
D. Etchison;Susan;Milburn;Isaac Ederys;Nahum Sonenberggl;Hershey
通讯作者: D. Etchison;Susan;Milburn;Isaac Ederys;Nahum Sonenberggl;Hershey
与酵母翻译起始区域相关的序列和结构特征——综述。
DOI: 10.1016/0378-1119(87)90261-7
发表时间: 1987
期刊: Gene
影响因子: 3.5
作者:
Cigan,AM;Donahue,TF
通讯作者: Donahue,TF
DOI: 10.1128/mcb.7.10.3438
发表时间: 1987-10-01
影响因子: 5.3
作者:
KOZAK, M
通讯作者: KOZAK, M