Structure of Seneca Valley Virus-001: an oncolytic picornavirus representing a new genus.

Structure of Seneca Valley Virus-001: an oncolytic picornavirus representing a new genus.
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DOI:
10.1016/j.str.2008.07.013
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发表时间:
2008-10-08
期刊:
Structure (London, England : 1993)
影响因子:
--
通讯作者:
Reddy VS
Reddy VS
中科院分区:
其他
文献类型:
--
作者:
Venkataraman S;Reddy SP;Loo J;Idamakanti N;Hallenbeck PL;Reddy VS

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本文报道了新属“塞内卡病毒”的代表成员塞内卡谷病毒-001 (SVV-001)的晶体结构。SVV-001是第一个自然产生的非致病性小核糖核酸病毒,被发现对具有神经内分泌癌特征的肿瘤细胞介导选择性细胞毒性。SVV-001的非节段(+)ssRNA基因组与心脏病毒成员的基因组具有最密切的序列相似性。VP1- vp4亚基的整体三级结构是保守的,除了环外,特别是VP1的环与心脏病毒的成员有较大的差异。预计VP1和VP2的表面环介导SVV-001的细胞趋向性。此外,包装的核酸密度的组织表明,VP2和VP4的某些区域与包装的核酸密切相互作用。
The crystal structure of Seneca Valley Virus-001, SVV-001, the representative member of a new genus “Senecavirus” is reported at 2.3Å resolution. SVV-001 is the first naturally occurring non-pathogenic picornavirus seen to mediate selective cytotoxicity towards tumor cells with neuroendocrine cancer features. The non-segmented (+) ssRNA genome of SVV-001 shares closest sequence similarity with the genomes of the members of Cardiovirus. The overall tertiary structure of VP1-VP4 subunits is conserved with the exception of loops, especially those of VP1 that show large deviations relative to the members of the Cardioviruses. The surface loops of VP1 and VP2 are predicted to mediate cell tropism of SVV-001. In addition, the organization of the packaged nucleic acid density indicates that certain regions of VP2 and VP4 interact closely with the packaged nucleic acid.
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