发明名称 |
CYCLIC DOUBLE-STRANDED DNA, MICROORGANISM CONTAINING SAID DNA, PRODUCTION OF INTERTYPIC RECOMBINANT VIRUS USING SAID MICROORGANISM AND RESULTANT INTERTYPIC RECOMBINANT VIRUS |
摘要 |
PURPOSE:A cyclic double-stranded DNA, obtained by intertype recombination of Sabin 1 type strain with Sabin 2 type or 3 type strain and capable of giving a safe vaccine strain exhibiting constant properties at all times. CONSTITUTION:A cyclic DNA capable of exhibiting infectivity for animal cells in cyclic double-stranded DNA prepared by converting poliovirus RNA gene into a double-stranded cDNA and replacing a region coding coat protein of Sabin 1 type strain cDNA with a double-stranded DNA of the corresponding genetic part (BAlI-BanI region; base Nos. 637-3550) of Sabin 2 type strain or corresponding genetic part (BalI-NdeI region; base Nos. 637-3405) of Sabin 3 type strain and producing the poliovirus. The above-mentioned DNA is transfected into animal cells, e.g. renal cells of African green monkey, and cultivated at 33.0-34.0 deg.C to recover the resultant intertypic recombinant virus, which is further subcultured for several passages to afford a virus liquid usable as a poliovirus live vaccine. |
申请公布号 |
JPS6394980(A) |
申请公布日期 |
1988.04.26 |
申请号 |
JP19860242694 |
申请日期 |
1986.10.13 |
申请人 |
NIPPON PORIO KENKYUSHO |
发明人 |
NOMOTO AKIO;OBARA MICHINORI |
分类号 |
C12N15/09;A61K39/13;C07H21/04;C07K14/105;C12N1/20;C12N15/00;C12N15/86;C12R1/19;C12R1/91 |
主分类号 |
C12N15/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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