Subdiffraction-resolution fluorescence microscopy reveals a domain of the centrosome critical for pericentriolar material organization.
Subdiffraction-resolution fluorescence microscopy reveals a domain of the centrosome critical for pericentriolar material organization.
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DOI:
10.1038/ncb2597
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发表时间:
2012-11
影响因子:
21.3
通讯作者:
中科院分区:
文献类型:
--
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As the main microtubule-organizing center in animal cells, the centrosome has a fundamental role in cell function. Surrounding the centrioles, the Pericentriolar material (PCM) provides a dynamic platform for nucleating microtubules. While the PCM’s importance is established, its amorphous electron-dense nature has made it refractory to structural investigation. By using SIM and STORM sub-diffraction resolution microscopies to visualize proteins critical for centrosome maturation, we demonstrate that the PCM is organized into two major structural domains: a layer juxtaposed to the centriole wall, and proteins extending further away from the centriole organized in a matrix. Analysis of Pericentrin-like protein (Plp) reveals that its C-terminus is positioned at the centriole wall, it radiates outward into the matrix and is organized in clusters having quasi-nine-fold symmetry. By RNAi we show that Plp fibrils are required for interphase recruitment and proper mitotic assembly of the PCM matrix.
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DOI:
10.1083/jcb.200908114
发表时间:
2010-01-25
期刊:
The Journal of cell biology
影响因子:
--
作者:
Delaval B;Doxsey SJ
通讯作者:
Doxsey SJ
影响因子:
7.8
作者:
Anderson, R G
通讯作者:
Anderson, R G
影响因子:
9.2
作者:
Conduit, Paul T.;Brunk, Kathrin;Raff, Jordan W.
通讯作者:
Raff, Jordan W.
影响因子:
64.8
作者:
Dzhindzhev, Nikola S.;Yu, Quan D.;Glover, David M.
通讯作者:
Glover, David M.
影响因子:
11.4
作者:
Guichard, Paul;Chretien, Denis;Tassin, Anne-Marie
通讯作者:
Tassin, Anne-Marie