mRNA structure determines specificity of a polyQ-driven phase separation.

mRNA structure determines specificity of a polyQ-driven phase separation.
复制标题

DOI:
10.1126/science.aar7432
复制
发表时间:
2018-05-25
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Gladfelter AS
Gladfelter AS
中科院分区:
其他
文献类型:
--
作者:
Langdon EM;Qiu Y;Ghanbari Niaki A;McLaughlin GA;Weidmann CA;Gerbich TM;Smith JA;Crutchley JM;Termini CM;Weeks KM;Myong S;Gladfelter AS

文献摘要

参考文献

被引文献

相似文献

RNA促进液-液相分离(LLP)在细胞中建立无膜隔间。如何在这些液体隔间中建立和保持不同的分子组成尚不清楚。在这里,我们报告了二级结构允许mRNAs自结合,并决定是否将mRNA招募到液体隔间或从液体隔间排除。多聚Q蛋白Whi3诱导RNA结构的构象变化,并根据RNA序列产生明显的分子波动。这些数据支持一个模型,在该模型中,基于结构的RNA-RNA相互作用促进了不同液滴的组装,而蛋白质驱动的RNA构象动力学保持了这一一致性。因此,RNA的形状可以促进在单个细胞中发现的各种富含RNA的液体隔室的形成和共存。在细胞中,相分离的隔室的同一性来自于由mRNA二级结构编码的RNA-RNA复合体。
RNA promotes liquid-liquid phase separation (LLPS) to build membrane-less compartments in cells. How distinct molecular compositions are established and maintained in these liquid compartments is unknown. Here we report that secondary structure allows mRNAs to self-associate and determines if an mRNA is recruited to or excluded from liquid compartments. The polyQ-protein Whi3 induces conformational changes in RNA structure and generates distinct molecular fluctuations depending on the RNA sequence. These data support a model in which structure-based, RNA-RNA interactions promote assembly of distinct droplets and protein-driven, conformational dynamics of the RNA maintain this identity. Thus, the shape of RNA can promote the formation and coexistence of the diverse array of RNA-rich liquid compartments found in a single cell. Identity in cellular, phase-separated compartments arises from RNA-RNA complexes encoded by mRNA secondary structures.
DOI: 10.1371/journal.pone.0084060
发表时间: 2013-12-27
期刊: PLOS ONE
影响因子: 3.7
作者:
Holmes, Kristen J.;Klass, Daniel M.;Cyert, Martha S.
通讯作者: Cyert, Martha S.
DOI: 10.1038/nprot.2015.103
发表时间: 2015-11
期刊: Nature protocols
影响因子: 14.8
作者:
Smola MJ;Rice GM;Busan S;Siegfried NA;Weeks KM
通讯作者: Weeks KM
DOI: 10.1016/j.cell.2013.10.046
发表时间: 2013-12-05
期刊: CELL
影响因子: 64.5
作者:
Caudron, Fabrice;Barral, Yves
通讯作者: Barral, Yves
DOI: 10.1038/nature22386
发表时间: 2017-06-08
期刊: Nature
影响因子: 64.8
作者:
Jain A;Vale RD
通讯作者: Vale RD
DOI: 10.1073/pnas.1504822112
发表时间: 2015-06-09
影响因子: 11.1
作者:
Elbaum-Garfinkle, Shana;Kim, Younghoon;Brangwynne, Clifford P.
通讯作者: Brangwynne, Clifford P.