Defining a core set of actin cytoskeletal proteins critical for actin-based motility of Rickettsia.
Defining a core set of actin cytoskeletal proteins critical for actin-based motility of Rickettsia.
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DOI:
10.1016/j.chom.2010.04.008
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发表时间:
2010-05-20
影响因子:
30.3
通讯作者:
Welch MD
中科院分区:
文献类型:
--
作者:
Serio AW;Jeng RL;Haglund CM;Reed SC;Welch MD
Many Rickettsia species are intracellular bacterial pathogens that use actin-based motility for spread during infection. However, while other bacteria assemble actin tails consisting of branched networks, Rickettsia assemble long parallel actin bundles, suggesting the use of a distinct mechanism for exploiting actin. To identify the underlying mechanisms and host factors involved in Rickettsia parkeri actin-based motility, we performed an RNAi screen targeting 115 actin cytoskeletal genes in Drosophila cells. The screen delineated a set of four core proteins—profilin, fimbrin/T-plastin, capping protein, and cofilin—as crucial for determining actin tail length, organizing filament architecture, and enabling motility. In mammalian cells, these proteins were localized throughout R. parkeri tails, consistent with a role in motility. Profilin and fimbrin/T-plastin were critical for the motility of R. parkeri but not Listeria monocytogenes. Our results highlight key distinctions between the evolutionary strategies and molecular mechanisms employed by bacterial pathogens to assemble and organize actin.
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DOI:
10.1038/nrm2867
发表时间:
2010-04
期刊:
Nature reviews. Molecular cell biology
影响因子:
--
作者:
通讯作者:
--
影响因子:
2.9
作者:
Boujemaa-Paterski, R;Gouin, E;Pantaloni, D
通讯作者:
Pantaloni, D
影响因子:
16
作者:
Andrianantoandro, Ernesto;Pollard, Thomas D.
通讯作者:
Pollard, Thomas D.
影响因子:
9.2
作者:
Cameron, LA;Svitkina, TM;Borisy, GG
通讯作者:
Borisy, GG
DOI:
10.1083/jcb.146.6.1319
发表时间:
1999-09-20
期刊:
The Journal of cell biology
影响因子:
--
作者:
Egile C;Loisel TP;Laurent V;Li R;Pantaloni D;Sansonetti PJ;Carlier MF
通讯作者:
Carlier MF