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  • Title: [The relationship between protein synthesis of Sindbis virus and host cytoskeletons].
    Author: Qiu J, Zhang XQ, Lu Y, Ding MX.
    Journal: Shi Yan Sheng Wu Xue Bao; 1998 Sep; 31(3):251-8. PubMed ID: 12016969.
    Abstract:
    In our experiments, protein synthesis of host cells were inhibited quickly at the early stage of infection by Sindbis virus. Polysome and mRNA of host cell fell off from cytoskeletons, whereas virus RNA bound up. We also found it was via 3'-terminal that virus RNA bound with cytoskeleton. After studying on the virus nonstructural proteins, we found the synthesis and processing of virus protein in vitro were far slowly than in vivo, and most of proteins were premature. So, the cytoskeletons may play an important role there. After treated with colchicine and cytochalasin B, the microtubule and microfilament were destroyed. However, the synthesis and processing of nonstructural proteins of Sindbis virus didn't change much, while the structural proteins were inhibited largely. These results showed the differences of dependence of the synthesis of the two kinds of proteins on cytoskeletons. Microtubule and microfilament may be more important to the synthesis of structural proteins than to that of the nonstructural proteins.
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