The NS2 protein generated by the parvovirus minute virus of mice is degraded by the proteasome in a manner independent of ubiquitin chain elongation or activation.

The NS2 protein generated by the parvovirus minute virus of mice is degraded by the proteasome in a manner independent of ubiquitin chain elongation or activation.
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小鼠细小病毒产生的 NS2 蛋白被蛋白酶体以不依赖于泛素链延长或激活的方式降解。

DOI:
10.1006/viro.2001.0966
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发表时间:
2001
期刊:
Virology.
影响因子:
--
通讯作者:
Pintel,DJ
Pintel,DJ
中科院分区:
--
文献类型:
--
作者:
Miller,CL;Pintel,DJ

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由小鼠细小病毒产生的NS2蛋白是非常不稳定的,在感染过程中具有约90分钟的半衰期。NS2的降解被蛋白酶体抑制剂阻断,但可能是泛素独立的:NS2不形成可检测的较高分子量的含泛素的缀合物,和NS2降解既不需要泛素链延长,也不需要细胞内泛素活化。我们还确定了一个区域的羧基一半的NS2是所需的蛋白酶体介导的降解。
The NS2 protein generated by the parvovirus minute virus of mice is very labile, having a half-life during infection of approximately 90 min. The degradation of NS2 is blocked by proteasome inhibitors but is likely ubiquitin independent: NS2 does not form detectable higher molecular weight ubiquitin-containing conjugates, and NS2 degradation requires neither ubiquitin chain elongation nor intracellular ubiquitin activation. We have also identified a region in the carboxyl half of NS2 that is required for its proteasome-mediated degradation.
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