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:
影响因子:
--
通讯作者:
Gladfelter AS
中科院分区:
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
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.
登录
查看更多内容
影响因子:
3.7
作者:
Holmes, Kristen J.;Klass, Daniel M.;Cyert, Martha S.
通讯作者:
Cyert, Martha S.
影响因子:
14.8
作者:
Smola MJ;Rice GM;Busan S;Siegfried NA;Weeks KM
通讯作者:
Weeks KM
影响因子:
64.5
作者:
Caudron, Fabrice;Barral, Yves
通讯作者:
Barral, Yves
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.