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首页> 外文期刊>Journal of Virology >Further genetic localization of the transforming sequences of the p21 v-ras gene of Harvey murine sarcoma virus.
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Further genetic localization of the transforming sequences of the p21 v-ras gene of Harvey murine sarcoma virus.

机译:哈维鼠肉瘤病毒P21 V-RAS基因转化序列的进一步遗传定位。

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The sequences encoding the 21-kilodalton transforming protein (p21 ras) of Harvey murine sarcoma virus have previously been localized genetically to a 1.3-kilobase segment of the viral DNA (E. H. Chang, R. W. Ellis, E. M. Scolnick, and D. R. Lowy, Science 210:1249-1251, 1980). Within this segment, DNA sequence analysis has found a single open reading frame large enough to encode the viral p21 (R. Dhar, R. W. Ellis, T. Y. Shih, S. Oroszlan, B. Shapiro, J. Maizel, D. Lowy, and E. M. Scolnick, Science 217:934-937, 1982). There are three potential in-frame ATG initiation codons at the 5' end of this open reading frame. By constructing a mutant of Harvey murine sarcoma virus DNA from which the first two ATG codons of this open reading frame have been deleted, we now show by transfection of the mutant viral DNA into NIH 3T3 cells that only the third ATG codon is necessary and sufficient for synthesis of the viral p21 and for cellular transformation.
机译:编码哈维鼠Sarcoma病毒的21千杆转化蛋白(P21 Ras)的序列先前已经归因于病毒DNA的1.3千碱基(EH Chang,RW Ellis,EM Scolnick,以及罗迪博士,科学210: 1249-1251,980)。在该段内,DNA序列分析已经发现一个足够大的单个开放阅读框以编码病毒P21(R. Dhar,Rw Ellis,Ty Shih,S. Oroszlan,B. Shapiro,J. Maizel,D. owy和Em Scolnick,Science 217:934-937,1982)。在该开放阅读框的5'末端存在三个潜在的帧内ATG启动密码子。通过构建哈维鼠Sarcoma病毒DNA的突变体,从中已经删除了该开放阅读框的前两个ATG密码子,我们现在通过将突变病毒DNA转染到NIH 3T3细胞中仅需要第三ATG密码子是必要的并且足够的用于合成病毒P21和细胞转化。

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