Heparan sulfate is a binding molecule but not a receptor for CEACAM1-independent infection of murine coronavirus.

Heparan sulfate is a binding molecule but not a receptor for CEACAM1-independent infection of murine coronavirus.
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DOI:
10.1016/j.virol.2007.06.034
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发表时间:
2007-09-15
期刊:
影响因子:
3.7
通讯作者:
Taguchi F
Taguchi F
中科院分区:
医学3区
文献类型:
--
作者:
Watanabe R;Sawicki SG;Taguchi F

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发现具有受体(MHVR)非依赖性感染活性的高神经毒性小鼠肝炎病毒(MHV)JHMV株(wt)及其不具有这种活性的低毒性突变体srr 7附着于MHVR阴性、非允许性BHK细胞。为了鉴定与JHMV相互作用的分子,我们将重点放在硫酸乙酰肝素(HS)上,因为它作为以MHVR独立方式感染的突变MHV-rec 1的受体。目前的研究表明,HS与野生型JHMV和srr 7相互作用,但它不作为一个进入受体,因为它显然是MHV-rec 1。此外,HS未能作为一个入口受体的MHVR-独立的感染野生型JHMV,表明HS不是一个主机因子,野生型JHMV利用MHVR-独立的感染。
A highly neurovirulent mouse hepatitis virus (MHV) JHMV strain (wt) with receptor (MHVR)-independent infection activity and its low-virulent mutant srr7 without such activity were found to attach to MHVR-negative, non-permissive BHK cells. To identify the molecule that interacts with JHMV, we focused on heparan sulfate (HS) since it works as a receptor of a mutant MHV-rec1 that infects in an MHVR-independent fashion. The present study indicates that HS interacts with both wt JHMV and srr7 but it does not function as an entry receptor as it apparently does for MHV-rec1. Furthermore, HS failed to serve as an entry receptor in the MHVR-independent infection of wt JHMV, indicating that HS is not a host factor that wt JHMV utilizes in an MHVR-independent infection.
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