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口蹄疫病毒温度敏感突变体的物理和代谢特性的进一步研究。

Further studies of the physical and metabolic properties of foot-and-mouth disease virus temperature-sensitive mutants.

作者信息

Richmond J Y, Polatnick J

出版信息

Infect Immun. 1976 May;13(5):1392-6. doi: 10.1128/iai.13.5.1392-1396.1976.

Abstract

Three temperature-sensitive (ts) mutants of foot-and-mouth disease virus were classified as ribonucleic acid negative and as belonging to the same complementation group when measured by virus yields and [3H] uridine incorporation in paired, mixed infections at the nonpermissive temperature (38.5C). Mutant ts-22, the only mutant able to produce plaques at 38.5 C, was more sensitive to acid than were the parental wild-type or other mutant viruses. Diethylaminoethyl-dextran did not enhance the plaque-forming ability of the mutant viruses at 38.5C. All of the viruses inhibited host cell protein syntehsis at both permissive (33C) and nonpermissive (38.5C) temperatures.

摘要

当在非允许温度(38.5℃)下通过病毒产量以及在成对混合感染中[3H]尿苷掺入量来测定时,口蹄疫病毒的三个温度敏感(ts)突变体被归类为核糖核酸阴性且属于同一互补群。突变体ts - 22是唯一能够在38.5℃产生蚀斑的突变体,它比亲本野生型或其他突变病毒对酸更敏感。二乙氨基乙基葡聚糖在38.5℃时并未增强突变病毒的蚀斑形成能力。所有病毒在允许温度(33℃)和非允许温度(38.5℃)下均抑制宿主细胞蛋白质合成。

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