Zaslavsky V
J Virol. 1979 Jan;29(1):405-8. doi: 10.1128/JVI.29.1.405-408.1979.
Accumulation of thymidine kinase activity in vaccinia virus-infected cells was severely inhibited by zinc ions if the drug was added within 1 h postinfection. If added later, zinc ions had no effect on the enzyme synthesis. A fraction of RNA which is normally synthesized in infected cells, was missing from a proper part of the gradient if the cells were treated with zinc ions within 1 h postinfection (as has been shown by cosedimentation of pulse-labeled RNAs in isokinetic gradients). It is suggested that a transcriptional (or posttranscriptional) step is involved in zinc-caused inhibition of vaccinia virus growth.
如果在感染后1小时内添加锌离子,锌离子会严重抑制痘苗病毒感染细胞中胸苷激酶活性的积累。如果稍后添加,锌离子对该酶的合成没有影响。如果在感染后1小时内用锌离子处理细胞,感染细胞中正常合成的一部分RNA在梯度的适当部分会缺失(如脉冲标记RNA在等密度梯度中共沉降所显示)。提示锌导致痘苗病毒生长抑制涉及转录(或转录后)步骤。