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INVESTIGATION OF REPLICATION MECHANISM AND PATHOGENESIS OF PARAMYXOVIRUS BY USING INFECTIOUS cDNA CLONE

INVESTIGATION OF REPLICATION MECHANISM AND PATHOGENESIS OF PARAMYXOVIRUS BY USING INFECTIOUS cDNA CLONE
利用感染性cDNA克隆研究副粘病毒的复制机制和发病机制
批准号:
04454200
负责人:
ITO Yasuhiko
金额:
$4.29万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for General Scientific Research (B)
财政年份:
1992
资助国家:
日本
项目状态:
已结题
起止时间:
1992 至 1993

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中文摘要
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英文摘要
At first, the nucleotide sequences of the L gene of Paramyxovirus, simian viruses 5 and 41 were determined. Therefore, amino acid sequences of components of replicative complex, NP, P, and L proteins were also determined. Full-length cDNA clones for NP,P, and L protein could be obtained. Next, artificial mini-genomes, Leader sequence-R1-reporter gene-R2-Trailer sequence, were constructed. The mini-genomes were transfected into human parainfluenza type 2 virus or simian virus 41-infected cells. In this system, replication, transcription and RNA editing were occurred. However, the efficiency was not so high. Subsequently, the mini-genomes, cDNA for NP, P, and L proteins were transfected into the cells infected recombinant vaccinia virus containing T7 polymerase. In this new system, high efficiency of transcription, replication and RNA editing were observed. In another experiment, full-length cDNA clone for human parainfluenza virus type 2 was nearly constructed.
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21
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