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公开(公告)号:US07485446B2
公开(公告)日:2009-02-03
申请号:US11677110
申请日:2007-02-21
申请人: Halong N. Vu , Daniel W. Pack , Joshua Ramsey
发明人: Halong N. Vu , Daniel W. Pack , Joshua Ramsey
CPC分类号: C07K14/005 , C12N7/00 , C12N2740/13021 , C12N2740/13022 , Y10S930/221
摘要: The present invention is a mutant retroviral protease which confers an increase in retroviral stability. Retroviruses expressing the instant mutant retroviral protease exhibit at least a 2-fold increase in infectivity half-life as compared to wild-type retrovirus. Unexpectedly, a Gly119Glu mutation in the protease enhances retroviral stability in the presence of various wild-type envelope proteins including wild-type amphotropic, ecotropic and 10A1 murine leukemia viruses. The improved stability of the mutant retrovirus leads to more facile virus production and enhanced infection efficiency.
摘要翻译: 本发明是赋予逆转录病毒稳定性增加的突变型逆转录病毒蛋白酶。 与野生型逆转录病毒相比,表达本发明突变逆转录病毒蛋白酶的逆转录病毒体的感染性半衰期至少提高2倍。 意外的是,蛋白质中的Gly119Glu突变增强了在各种野生型包膜蛋白的存在下的逆转录病毒稳定性,包括野生型和平嗜性,嗜酸性和10A1鼠白血病病毒。 改进的突变逆转录病毒的稳定性导致更容易的病毒生产和增强的感染效率。
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公开(公告)号:US20070196386A1
公开(公告)日:2007-08-23
申请号:US11677110
申请日:2007-02-21
申请人: Halong N. Vu , Daniel W. Pack , Joshua Ramsey
发明人: Halong N. Vu , Daniel W. Pack , Joshua Ramsey
IPC分类号: A61K39/395 , A61K39/12
CPC分类号: C07K14/005 , C12N7/00 , C12N2740/13021 , C12N2740/13022 , Y10S930/221
摘要: The present invention is a mutant retroviral protease which confers an increase in retroviral stability. Retroviruses expressing the instant mutant retroviral protease exhibit at least a 2-fold increase in infectivity half-life as compared to wild-type retrovirus. Unexpectedly, a Gly119Glu mutation in the protease enhances retroviral stability in the presence of various wild-type envelope proteins including wild-type amphotropic, ecotropic and 10A1 murine leukemia viruses. The improved stability of the mutant retrovirus leads to more facile virus production and enhanced infection efficiency.
摘要翻译: 本发明是赋予逆转录病毒稳定性增加的突变型逆转录病毒蛋白酶。 与野生型逆转录病毒相比,表达本发明突变逆转录病毒蛋白酶的逆转录病毒体的感染性半衰期至少提高2倍。 意外的是,蛋白质中的Gly119Glu突变增强了在各种野生型包膜蛋白的存在下的逆转录病毒稳定性,包括野生型和平嗜性,嗜酸性和10A1鼠白血病病毒。 改进的突变逆转录病毒的稳定性导致更容易的病毒生产和增强的感染效率。
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