Woods W A, Papas T S, Hirumi H, Chirigos M A
J Virol. 1973 Nov;12(5):1184-6. doi: 10.1128/JVI.12.5.1184-1186.1973.
The C-type particles observed by electron microscopy in PK-15 cells were demonstrated to have biochemical and biophysical properties associated with the oncornavirus group: density of 1:16 in a sucrose gradient, 70S RNA, and the RNA-dependent DNA polymerase. The group-specific interspecies antigen, gs-3, was not present. Evidence of a latent infection with a porcine parvovirus was also obtained.
通过电子显微镜在PK - 15细胞中观察到的C型颗粒被证明具有与肿瘤病毒组相关的生化和生物物理特性：在蔗糖梯度中的密度为1:16，70S RNA，以及RNA依赖性DNA聚合酶。不存在组特异性种间抗原gs - 3。还获得了猪细小病毒潜伏感染的证据。
