Prion formation by a yeast GLFG nucleoporin.
Prion formation by a yeast GLFG nucleoporin.
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作者:
Halfmann R;Wright JR;Alberti S;Lindquist S;Rexach M
The self-assembly of proteins into higher order structures is both central to normal biology and a dominant force in disease. Certain glutamine/asparagine (Q/N)-rich proteins in the budding yeast Saccharomyces cerevisiae assemble into self-replicating amyloid-like protein polymers, or prions, that act as genetic elements in an entirely protein-based system of inheritance. The nuclear pore complex (NPC) contains multiple Q/N-rich proteins whose self-assembly has also been proposed to underlie structural and functional properties of the NPC. Here we show that an essential sequence feature of these proteins—repeating GLFG motifs—strongly promotes their self-assembly into amyloids with characteristics of prions. Furthermore, we demonstrate that Nup100 can form bona fide prions, thus establishing a previously undiscovered ability of yeast GLFG nucleoporins to adopt this conformational state in vivo.
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DOI:
10.1074/mcp.m900038-mcp200
发表时间:
2009-09
期刊:
Molecular & cellular proteomics : MCP
影响因子:
--
作者:
DeGrasse JA;DuBois KN;Devos D;Siegel TN;Sali A;Field MC;Rout MP;Chait BT
通讯作者:
Chait BT
影响因子:
4.8
作者:
Dong, Jijun;Bloom, Jesse D.;Lindquist, Susan
通讯作者:
Lindquist, Susan
影响因子:
30.8
作者:
Du, Zhiqiang;Park, Kyung-Won;Li, Liming
通讯作者:
Li, Liming
DOI:
10.1073/pnas.0910163107
发表时间:
2010-04-06
影响因子:
11.1
作者:
Ader, Christian;Frey, Steffen;Baldus, Marc
通讯作者:
Baldus, Marc
影响因子:
4.8
作者:
Alexandrov, Ilya M.;Vishnevskaya, Aleksandra B.;Ter-Avanesyan, Michael D.;Kushnirov, Vitaly V.
通讯作者:
Kushnirov, Vitaly V.