Identification of the gene and mRNA for the adenovirus terminal protein precursor

Identification of the gene and mRNA for the adenovirus terminal protein precursor
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腺病毒末端蛋白前体基因和mRNA的鉴定

DOI:
10.1016/0092-8674(81)90145-8
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发表时间:
1981
期刊:
影响因子:
64.5
通讯作者:
J. Smart
J. Smart
中科院分区:
生物学1区
文献类型:
--
作者:
B. Stillman;J. B. Lewis;L. Chow;M. Mathews;J. Smart

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55K 腺病毒末端蛋白的前体是与病毒 DNA 共价连接的 67K 蛋白。该蛋白质可能与 Challberg 等人 (1980) 描述的 80,000 道尔顿蛋白质相同。 67K 末端蛋白前体的 mRNA 与 E2-72K DNA 结合蛋白的 mRNA 一样,在感染的早期和晚期均可检测到,并且其产生对蛋白质合成抑制敏感(Lewis 和 Mathews,1980)。 67K 蛋白与 105,000 道尔顿和 75,000 道尔顿的蛋白一起,由左转录(l 链)信使 RNA 翻译而成,这些信使 RNA 与病毒基因组 11.2 和 31 S 之间的位置互补。与坐标 37.3 和 41 之间区域的额外杂交表明,RNA 体与基因组中更右侧的序列进行剪接。电子显微镜异源双链体分析揭示了一个可能编码这些蛋白质的上链 RNA 家族。 RNA体从坐标30、26和23延伸到11.l,前导序列位于39、66.5和75图单位,定义了新的腺病毒早期区域。这些RNA和E2区RNA共享第一前导序列并且可能具有相同的启动子,并且可以协同表达。在限制温度下生长的蛋白酶缺陷型腺病毒 2 突变体 tsf 的病毒粒子仅包含 67K 形式;当在允许的温度下生长时,它们包含 67K 和 55K 形式,以及附加的 62K 形式;野生型病毒粒子仅包含 55K 形式。肽分析显示所有这些蛋白质都是相关的。含有 67K 形式的 DNA-蛋白质复合物作为病毒 DNA 体外复制的模板具有活性。该数据支持腺病毒 DNA 复制模型,其中 67K 末端蛋白前体是主要翻译产物并引发 DNA 合成。 67K 前体在病毒成熟过程中被病毒特异的 AdPtsl 蛋白酶加工成 55K 末端蛋白,可能通过 62K 中间体形式。
The precursor of the 55K adenovirus terminal protein is an 67K protein that is covalently linked to viral DNA. This protein is likely to be identical to the 80,000 dalton protein described by Challberg et al.(1980). The mRNA for the 67K terminal protein precursor, like that for the E2-72K DNA binding protein, is detectable at both early and late times of infection, and its production is sensitive to protein synthesis inhibition(Lewis and Mathews, 1980). The 67K protein, together with proteins of 105,000 and 75,000 daltons, are translated from leftward transcribed(l-strand) messenger RNAs that are complementary to the viral genome between positions 11.2 and 31 S. Additional hybridization to the region between coordinates 37.3 and 41 suggests that the RNA body is spliced to sequences mapping farther right in the genome. Electron microscopic heteroduplex analysis has revealed a family of lstrand RNAs that probably encode these proteins. The RNA bodies extend from coordinates 30, 26 and 23 to 11. l, with leaders at 39, 66.5 and 75 map units, defining a new adenovirus early region. These RNAs and region E2 RNAs share the first leader and presumably the same promoter, and may be coordinately expressed. Virions of the protease-deficient adenovirus 2 mutant tsf grown at the restrictive temperature contain only the 67K form; when grown at the permissive temperature they contain both the 67K and 55K forms, and an additional 62K form; wild-type virions contain only the 55K form. Peptide analysis shows all these proteins to be related. The DNA-protein complex containing the 67K form is active as a template for viral DNA replication in vitro. This data supports a model of adenovirus DNA replication in which the 67K terminal protein precursor is the primary translation product and primes DNA synthesis. The 67K precursor is processed during virus maturation to the 55K terminal protein, possibly via a 62K intermediate form, by the virus-specified AdPtsl protease.
DOI: 10.1101/sqb.1980.044.01.044
发表时间: 1979-01-01
期刊: COLD SPRING HARBOR SYMPOSIA ON QUANTITATIVE BIOLOGY
影响因子: --
作者:
CHOW, LT;LEWIS, JB;BROKER, TR
通讯作者: BROKER, TR
腺病毒 DNA 和 55,000 分子量末端蛋白之间的连接结构。
DOI: 10.1016/0022-2836(81)90208-4
发表时间: 1981
影响因子: 5.6
作者:
Desiderio,SV;KellyJr,TJ
通讯作者: KellyJr,TJ
腺病毒2号主要晚期转录单位中信使RNA和蛋白质编码序列的排列。
DOI: 10.1016/0022-2836(80)90258-2
发表时间: 1980
影响因子: 5.6
作者:
Miller,JS;Ricciardi,RP;Roberts,BE;Paterson,BM;Mathews,MB
通讯作者: Mathews,MB
DOI: 10.1101/sqb.1980.044.01.048
发表时间: 1980
期刊: Cold Spring Harbor symposia on quantitative biology
影响因子: --
作者:
Wilson,MC;Nevins,JR;Blanchard,JM;Ginsberg,HS;DarnellJr,JE
通讯作者: DarnellJr,JE