Streptococcal M1 protein constructs a pathological host fibrinogen network.
Streptococcal M1 protein constructs a pathological host fibrinogen network.
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DOI:
10.1038/nature09967
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发表时间:
2011-04-07
期刊:
影响因子:
64.8
通讯作者:
Ghosh, Partho
中科院分区:
文献类型:
--
作者:
Macheboeuf, Pauline;Buffalo, Cosmo;Fu, Chi-yu;Zinkernagel, Annelies S.;Cole, Jason N.;Johnson, John E.;Nizet, Victor;Ghosh, Partho
M1 protein, a major virulence factor of the leading invasive strain of group A Streptococcus, is sufficient to induce toxic shock-like vascular leakage and tissue injury. These events are triggered by the formation of a complex between M1 and fibrinogen (Fg) that, unlike M1 or Fg alone, leads to neutrophil activation. Here we provide a structural explanation for the pathological properties of the M1-Fg complex. A conformationally dynamic coiled-coil dimer of M1 was found to organize four Fg molecules into a specific cross-like pattern. This pattern supported the construction of a supramolecular network that was required for neutrophil activation but was distinct from a fibrin clot. Disruption of this network into other supramolecular assemblies was not tolerated. These results have bearing on the pathophysiology of streptococcal toxic shock.
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影响因子:
2.7
作者:
Geiser, M;Cèbe, R;Schmitz, R
通讯作者:
Schmitz, R
影响因子:
3.1
作者:
Kansal, RG;McGeer, A;Kotb, M
通讯作者:
Kotb, M
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
6.7
作者:
Kahn, Fredrik;Morgelin, Matthias;Shannon, Oonagh;Norrby-Teglund, Anna;Herwald, Heiko;Olin, Anders I.;Bjorck, Lars
通讯作者:
Bjorck, Lars
DOI:
10.1107/s0907444998003254
发表时间:
1998-09-01
期刊:
ACTA CRYSTALLOGRAPHICA SECTION D-BIOLOGICAL CRYSTALLOGRAPHY
影响因子:
--
作者:
Brunger, AT;Adams, PD;Warren, GL
通讯作者:
Warren, GL