The heads of the measles virus attachment protein move to transmit the fusion-triggering signal.
The heads of the measles virus attachment protein move to transmit the fusion-triggering signal.
复制标题
DOI:
10.1038/nsmb.1967
复制
发表时间:
2011-02
影响因子:
16.8
通讯作者:
中科院分区:
文献类型:
--
作者:
The measles virus entry system, constituted of attachment (hemagglutinin, H) and fusion proteins, operates based on a variety of natural and targeted receptors. However, the mechanism triggering fusion of the viral envelope with the plasma membrane is not understood. Here we tested a model considering that the two heads of an H-dimer, which are covalently linked at their base, after binding two receptor molecules, move relative to each other to transmit the fusion-triggering signal. Indeed, stabilizing the H-dimer interface by additional inter-molecular disulfide bonds prevented membrane fusion, an effect reversed by a reducing agent. Moreover, a membrane-anchored designated receptor efficiently triggered fusion, provided it engaged the H-dimer at locations proximal to where the natural receptors bind, and distal to the H-dimer interface. We discuss how receptors may force H-heads to switch partners and transmit the fusion-triggering signal.
登录
查看更多内容
DOI:
10.1038/nrmicro1927
发表时间:
2008-07
期刊:
Nature reviews. Microbiology
影响因子:
--
作者:
通讯作者:
--
影响因子:
5.4
作者:
CATTANEO, R;ROSE, JK
通讯作者:
ROSE, JK
影响因子:
5.4
作者:
Bowden, Thomas A.;Crispin, Max;Stuart, David I.
通讯作者:
Stuart, David I.
影响因子:
5.4
作者:
Cathomen, T;Naim, HY;Cattaneo, R
通讯作者:
Cattaneo, R
影响因子:
16.8
作者:
通讯作者:
--