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首页> 外文期刊>Journal of Virology >The nucleocapsid of the lipid-containing double-stranded RNA bacteriophage phi 6 contains a protein skeleton consisting of a single polypeptide species.
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The nucleocapsid of the lipid-containing double-stranded RNA bacteriophage phi 6 contains a protein skeleton consisting of a single polypeptide species.

机译:含脂质的双链RNA噬菌体PHI 6的核衣壳含有由单个多肽物种组成的蛋白质骨架。

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The nucleocapsid of the enveloped double-stranded RNA bacteriophage phi 6 was isolated by extraction with the nonionic detergent Triton X-114 and subjected to disruption analysis with chelating and protein-denaturing agents. The subnucleocapsid particles were separated in rate-zonal sucrose gradients, and their ultrastructure and protein composition were analyzed. The role of divalent cations in the nucleocapsid structure was studied by using a precipitation assay of the isolated nucleocapsid proteins. The phi 6 nucleocapsid had a cagelike skeleton consisting of a single polypeptide species (P1). Two other proteins (P2 and P4) were associated with the P1 cage. These three early proteins were previously known to be involved in the RNA synthesis machinery of the virus. The stability of the nucleocapsid surface lattice consisting of protein P8 was dependent on Ca2+ ions.
机译:通过用非离子洗涤剂Triton X-114提取包膜双链RNA噬菌体PHI 6的核衣壳,并用螯合和蛋白质 - 变性剂进行破坏分析。将亚核遗传粒颗粒以速率 - 左旋蔗糖梯度分开,分析其超微结构和蛋白质组合物。通过使用分离的核衣壳蛋白的沉淀测定来研究二价阳离子在核衣壳结构中的作用。 PHI 6 Nuclecapsid具有由单个多肽物种(P1)组成的CAGELIKE骨架。另外两种蛋白质(P2和P4)与P1笼相关。以前已知这三种早期蛋白质参与病毒的RNA合成机械。由蛋白质P8组成的核衣壳表面晶格的稳定性依赖于Ca2 +离子。

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