A genome sequence of novel SARS-CoV isolates: the genotype, GD-Ins29, leads to a hypothesis of viral transmission in South China.
We report a complete genomic sequence of rare isolates (minor genotype) of the SARS-CoV from SARS patients in Guangdong, China, where the first few cases emerged. The most striking discovery from the isolate is an extra 29-nucleotide sequence located at the nucleotide positions between 27,863 and 27,864 (referred to the complete sequence of BJ01) within an overlapped region composed of BGI-PUP5 (BGI-postulated uncharacterized protein 5) and BGI-PUP6 upstream of the N (nucleocapsid) protein. The discovery of this minor genotype, GD-Ins29, suggests a significant genetic event and differentiates it from the previously reported genotype, the dominant form among all sequenced SARS-CoV isolates. A 17-nt segment of this extra sequence is identical to a segment of the same size in two human mRNA sequences that may interfere with viral replication and transcription in the cytosol of the infected cells. It provides a new avenue for the exploration of the virus-host interaction in viral evolution, host pathogenesis, and vaccine development.
Qin
E'de
E
Institute of Microbiology and Epidemiology, Chinese Academy of Military Medical Sciences, Beijing 100071, China.
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Tian
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W
Liu
Yong
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Wei
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Wen
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Jingqiang
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Fan
Baochang
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Wu
Qingfa
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Guohui
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Wuchun
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Si
Bingyin
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Yongwu
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Wenming
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Jiang
Tao
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Jianping
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Zhang
Yu
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Wang
Cui'e
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Han
Yujun
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Deng
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Xiaoyu
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Caiping
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Chunxia
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Qingrun
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Bao
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Guoqing
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Weijun
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Fang
Lin
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Changfeng
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Lei
Meng
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Dawei
D
Tong
Wei
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Tian
Xiangjun
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Wang
Jin
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Zhang
Bo
B
Zhang
Haiqing
H
Zhang
Yilin
Y
Zhao
Hui
H
Zhang
Xiaowei
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Li
Shuangli
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Cheng
Xiaojie
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Zhang
Xiuqing
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Liu
Bin
B
Zeng
Changqing
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Songgang
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Tan
Xuehai
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Liu
Siqi
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Dong
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Jun
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Wong
Gane Ka-Shu
GK
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D001483:Base Sequence; D002681:China; D016000:Cluster Analysis; D040461:Gene Components; D014644:Genetic Variation; D016679:Genome, Viral; D005838:Genotype; D008969:Molecular Sequence Data; D010802:Phylogeny; D020133:Reverse Transcriptase Polymerase Chain Reaction; D045473:Severe acute respiratory syndrome-related coronavirus / Q000235:genetics*; D017422:Sequence Analysis, DNA; D045169:Severe Acute Respiratory Syndrome / Q000235:genetics*