Defining the borders of the chicken proto-fps gene, a precursor of Fujinami sarcoma virus.

Defining the borders of the chicken proto-fps gene, a precursor of Fujinami sarcoma virus.
复制标题

定义鸡原型 fps 基因的边界,该基因是藤波肉瘤病毒的前体。

DOI:
10.1016/0042-6822(85)90014-5
复制
发表时间:
1985
期刊:
影响因子:
3.7
通讯作者:
Duesberg,PH
Duesberg,PH
中科院分区:
医学3区
文献类型:
--
作者:
Pfaff,SL;Zhou,RP;Young,JC;Hayflick,J;Duesberg,PH

文献摘要

参考文献

被引文献

相似文献

逆转录病毒的转化(onc)基因含有特定的序列,来源于尚未明确定义的正常细胞基因,称为原癌基因。必须定义原癌基因,以解释它们与病毒衍生物的致癌性相比的温顺性。本研究旨在确定鸡原fps基因的边界,而鸡Fujinami(FSV)和PRC肉瘤病毒(PRCSV)的癌基因均来源于此基因。这些癌基因是逆转录病毒gag基因的一个元件(Δgag)与原fps的一个2.8kb结构域的杂交体。为了鉴定原FPs的5′端边界,我们利用先前衍生的原FPs克隆,对病毒FPs的5′端重叠边界以外1.5kb进行了测序。一个可能的启动子被确定为从这个边界映射736个核苷酸。736个核苷酸包含两个可能的外显子,121个密码子,以及与FSV和PRCII的Δgagtermini同源的短区域。在一个新分离的原fpsclone的1.15-kb序列中,在与病毒fps 3′端重叠的边界附近发现了一个翻译终止密码子和一个相邻的多聚腺苷酸化信号。将该1.15 kb的原fps序列中的4个外显子与FSV和PRCSV的已知fps序列进行比较,我们检测到了毒株特异性,但在每个病毒基因组中没有共同的点突变。通过凝胶电泳和与原fpsDNA杂交,在鸡肝RNA中检测到一个3.3kb的多聚腺苷酸化原fpsmRNA。我们的结论是,原fpsis的编码能力刚刚超过3 kb,与推定的原fps蛋白的大小为98 kDa一致,因此略大于viralfps。因此,原fp和病毒Δ gag-fps基因各自含有不同的5′调控和编码序列,并共享3′末端fps结构域。这表明,这种差异,而不是分散的点突变,是负责致癌功能的病毒基因和未知的细胞功能的原fps。
The transforming (onc) genes of retroviruses contain specific sequences, derived from as yet poorly defined, normal cellular genes, termed proto-oncgenes. Proto-oncgenes must be defined to explain their docility compared to the oncogenicity of the viral derivatives. Here we set out to determine the borders of the chicken proto-fpsgene from which theoncgenes of avian Fujinami (FSV) and PRC sarcoma viruses (PRCSV) are derived. Theseoncgenes are hybrids of an element from thegaggene of retroviruses (Δgag) linked to a 2.8-kb domain from proto-fps. To identify the 5′ border of proto-fpswe have sequenced 1.5 kb beyond the 5′ border of overlap with viralfpsutilizing a proto-fpsclone derived previously. A possible promoter was identified that maps 736 nucleotides from this border. The 736 nucleotides contain two possible exons with 121 codons, and short regions of homology with the Δgagtermini of FSV and PRCII. A translation stop codon and an adjacent polyadenylation signal were identified just prior to the 3′ border of overlap with viralfpswithin a 1.15-kb sequence of a newly isolated proto-fpsclone. Comparing four exons within this 1.15 kb proto-fpssequence with knownfpsequivalents of FSV and PRCSV, we have detected strain-specific, but no common point mutations in each viral genome. A 3.3-kb polyadenylated proto-fpsmRNA was detected in chicken liver RNA by gel electrophoresis and hybridization with proto-fpsDNA. We conclude that the coding capacity of proto-fpsis just over 3 kb, consistent with the size of the putative proto-fpsprotein of 98 kDa and hence slightly larger than that of viralfps. Thus proto-fpsand the viral Δgag-fpsgenes each contain distinct 5′ regulatory and coding sequences and share the 3′ terminalfpsdomains. It is suggested that this difference, rather than scattered point mutations, is responsible for the oncogenic function of the viral genes and the unknown cellular function of proto-fps.
DOI: 10.1128/jvi.50.1.125-131.1984
发表时间: 1984
影响因子: 5.4
作者:
C. C. Huang;C. Hammond;J. Bishop
通讯作者: J. Bishop
鸡 DNA 位点 proto-fps 与藤波肉瘤病毒转化基因 delta gag-fps 之间的结构关系。
DOI: 10.1016/0042-6822(83)90397-5
发表时间: 1983
期刊: Virology
影响因子: 3.7
作者:
Lee,WH;Phares,W;Duesberg,PH
通讯作者: Duesberg,PH
通过与禽骨髓细胞瘤病毒 MC29 的转化基因 delta gag-myc 比较,鸡 c-myc 基因的核苷酸序列分析揭示了同源且独特的编码区。
DOI: 10.1073/pnas.80.8.2146
发表时间: 1983
影响因子: 11.1
作者:
Watson,DK;Reddy,EP;Duesberg,PH;Papas,TS
通讯作者: Papas,TS
DOI: 10.1016/0042-6822(84)90414-8
发表时间: 1984
期刊: Virology
影响因子: 3.7
作者:
Seeburg,PH;Lee,WH;Nunn,MF;Duesberg,PH
通讯作者: Duesberg,PH
DOI: 10.1016/0022-2836(85)90083-x
发表时间: 1985-01-01
影响因子: 5.6
作者:
HUANG, CC;HAMMOND, C;BISHOP, JM
通讯作者: BISHOP, JM