The nucleoprotein is required for efficient coronavirus genome replication

被引:170
作者
Almazán, F [1 ]
Galán, C [1 ]
Enjuanes, L [1 ]
机构
[1] CSIC, Dept Mol & Cell Biol, Ctr Nacl Biotecnol, E-28049 Madrid, Spain
关键词
D O I
10.1128/JVI.78.22.12683-12688.2004
中图分类号
Q93 [微生物学];
学科分类号
071005 ; 100705 ;
摘要
The construction of a set of transmissible gastroenteritis coronavirus (TGEV)-derived replicons as bacterial artificial chromosomes is reported. These replicons were generated by sequential deletion of nonessential genes for virus replication, using a modified TGEV full-length cDNA clone containing unique restriction sites between each pair of consecutive genes. Efficient activity of TGEV replicons was associated with the presence of the nucleoprotein provided either in cis or in trans. TGEV replicons were functional in several cell lines, including the human cell line 293T, in which no or very low cytopathic effect was observed, and expressed high amounts of heterologous protein.
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收藏
页码:12683 / 12688
页数:6
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