Structural similarities of proteins encoded by three classes of avian sarcoma viruses.

Structural similarities of proteins encoded by three classes of avian sarcoma viruses.
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三类禽肉瘤病毒编码的蛋白质的结构相似性。

DOI:
10.1016/0042-6822(82)90167-2
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发表时间:
1982
期刊:
影响因子:
3.7
通讯作者:
Vogt,PK
Vogt,PK
中科院分区:
医学3区
文献类型:
--
作者:
Neil,JC;Ghysdael,J;Smart,JE;Vogt,PK

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通过蛋白酶裂解分析,研究了几种禽肉瘤病毒多蛋白磷酸化位点的结构和位置。PRCIIp和PRCII多蛋白,p170 gag- fpp和p105 gag- fpp从65,000分子量的n端区域(包括gag/非gag连接)中无法区分切割片段。这为PRCII通过基因组缺失直接由PRCIIp产生的观点提供了强有力的支持。对于p909agag -是的,p800 gagg -是的和p105 gagg -fps,酪氨酸磷酸化的主要位点分别位于27,000,26,500和36,000分子量的c端片段上。酪氨酸磷酸化位点的部分序列分析显示了进一步的相似性;胰蛋白酶和葡萄球菌V8蛋白酶裂解位点在src、fps和yesgene产物中位置基本一致。这两种产品的同源性特别引人注目。它们产生大小相似的c端抗v8片段,包含主要的酪氨酸磷酸化位点,这些位点经过几种蛋白酶的进一步裂解后无法区分。这些结果表明,尽管它们的DNA序列之间缺乏杂交,但src、fps和yesgene产物之间存在结构和功能上的相关性。
The structure and location of the phosphorylation sites of a number of avian sarcoma virus polyproteins have been examined by protease cleavage analysis. The PRCIIp and PRCII polyproteins, P170gag-fpsand P105gag-fpsyield indistinguishable cleavage fragments from an N-terminal region of 65,000 molecular weight, including thegag/non-gagjunction. This provides strong support for the view that PRCII arose directly from PRCIIp by a genomic deletion. For P909agag-yes, P800gag-yes, and P105gag-fpsthe major tyrosine phosphorylation sites are on C-terminal fragments of 27,000, 26,500, and 36,000 molecular weight, respectively. Further similarities have been shown by partial sequence analysis of the tyrosine phosphorylation sites; the positions of trypsin and staphylococcal V8 protease cleavage sites largely correspond in thesrc, fps, andyesgene products. The homology between thesrcandyesproducts is particularly striking. They yield C-terminal V8-resistant fragments of similar size, containing the major tyrosine phosphorylation sites which are indistinguishable after further cleavage with several proteases. These results suggest structural and functional relatedness between thesrc, fps, andyesgene products despite the lack of hybridization between their DNA sequences.
禽肉瘤病毒转化基因的纯化产物磷酸化酪氨酸。
DOI: --
发表时间: 1980
期刊: The Journal of biological chemistry
影响因子: --
作者:
Levinson,AD;Oppermann,H;Varmus,HE;Bishop,JM
通讯作者: Bishop,JM
用病毒体蛋白酶 p15 裂解四种禽肉瘤病毒多蛋白,去除 gag 序列并产生在体外充当酪氨酸磷酸受体的大片段。
DOI: 10.1073/pnas.78.9.5847
发表时间: 1981
影响因子: 11.1
作者:
Ghysdael,J;Neil,JC;Vogt,PK
通讯作者: Vogt,PK
病毒蛋白酶 p15 对禽逆转录病毒 gag 蛋白的体外裂解。
DOI: 10.1016/0042-6822(79)90534-8
发表时间: 1979
期刊: Virology
影响因子: 3.7
作者:
V. Vogt;A. Wight;R. Eisenman
通讯作者: R. Eisenman
禽肉瘤病毒和猫肉瘤病毒的转化序列之间存在同源性。
DOI: 10.1073/pnas.77.11.6536
发表时间: 1980
影响因子: 11.1
作者:
Shibuya,M;Hanafusa,T;Hanafusa,H;Stephenson,JR
通讯作者: Stephenson,JR
与禽肉瘤病毒 PRCII 的 p105 相关的酪氨酸特异性蛋白激酶活性。
DOI: 10.1016/0042-6822(81)90493-1
发表时间: 1981
期刊: Virology
影响因子: 3.7
作者:
Neil,JC;Ghysdael,J;Vogt,PK
通讯作者: Vogt,PK