Staphylococcus aureus toxin LukSF dissociates from its membrane receptor target to enable renewed ligand sequestration
Staphylococcus aureus toxin LukSF dissociates from its membrane receptor target to enable renewed ligand sequestration
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金黄色葡萄球菌毒素 LukSF 从其膜受体靶点解离,以实现新的配体隔离
DOI:
10.1101/251645
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Haapasalo K
中科院分区:
文献类型:
--
作者:
Haapasalo K
Staphylococcus aureus Panton-Valentine leukocidin is a pore-forming toxin targeting the human C5a receptor (hC5aR), enabling this pathogen to battle the immune response by destroying phagocytes through targeted lysis. The mechanisms that contribute to rapid cell lysis are largely unexplored. Here, we show that cell lysis may be enabled by a process of toxins targeting receptor clusters and present indirect evidence for receptor “recycling” that allows multiple toxin pores to be formed close together. With the use of live cell single-molecule super-resolution imaging, Förster resonance energy transfer and nanoscale total internal reflection fluorescence colocalization microscopy, we visualized toxin pore formation in the presence of its natural docking ligand. We demonstrate disassociation of hC5aR from toxin complexes and simultaneous binding of new ligands. This effect may free mobile receptors to amplify hyperinflammatory reactions in early stages of microbial infections and have implications for several other similar bicomponent toxins and the design of new antibiotics.—Haapasalo, K., Wollman, A. J. M., de Haas, C. J. C., van Kessel, K. P. M., van Strijp, J. A. G., Leake, M. C. Staphylococcus aureus toxin LukSF dissociates from its membrane receptor target to enable renewed ligand sequestration.
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影响因子:
3.1
作者:
K. Veldkamp;H. J. Heezius;Jan Verhoef;J. A. Strijp;K. V. Kessel
通讯作者:
K. V. Kessel
DOI:
10.1016/j.bbabio.2017.11.005
发表时间:
2018-02
期刊:
Biochimica et biophysica acta. Bioenergetics
影响因子:
--
作者:
I. Llorente-Garcia;Tchern Lenn;H. Erhardt;Oliver L Harriman;Lu-Ning Liu;Alexander Robson;Sheng-Wen Chiu;Sarah Matthews;N. Willis;C. D. Bray;Sang-Hyuk Lee;J. Shin;C. Bustamante;J. Liphardt;T. Friedrich;C. Mullineaux;M. Leake
通讯作者:
I. Llorente-Garcia;Tchern Lenn;H. Erhardt;Oliver L Harriman;Lu-Ning Liu;Alexander Robson;Sheng-Wen Chiu;Sarah Matthews;N. Willis;C. D. Bray;Sang-Hyuk Lee;J. Shin;C. Bustamante;J. Liphardt;T. Friedrich;C. Mullineaux;M. Leake
影响因子:
15.3
作者:
D. Fearon;K. Austen
通讯作者:
K. Austen
影响因子:
4.8
作者:
Stephanie Lachapelle;R. Tweten;Eileen M. Hotze
通讯作者:
Eileen M. Hotze
影响因子:
4.8
作者:
V. Guillet;P. Roblin;S. Werner;M. Coraiola;G. Menestrina;H. Monteil;G. Prévost;L. Mourey
通讯作者:
L. Mourey