Membraneless organelles formed by liquid-liquid phase separation increase bacterial fitness.
Membraneless organelles formed by liquid-liquid phase separation increase bacterial fitness.
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液-液相分离形成的无膜细胞器提高细菌适应性
DOI:
10.1126/sciadv.abh2929
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发表时间:
2021-10-22
期刊:
影响因子:
13.6
通讯作者:
Bai F
中科院分区:
文献类型:
--
作者:
Jin X;Lee JE;Schaefer C;Luo X;Wollman AJM;Payne-Dwyer AL;Tian T;Zhang X;Chen X;Li Y;McLeish TCB;Leake MC;Bai F
Liquid-liquid phase separation is emerging as a crucial phenomenon in several fundamental cell processes. A range of eukaryotic systems exhibit liquid condensates. However, their function in bacteria, which in general lack membrane-bound compartments, remains less clear. Here, we used high-resolution optical microscopy to observe single bacterial aggresomes, nanostructured intracellular assemblies of proteins, to undercover their role in cell stress. We find that proteins inside aggresomes are mobile and undergo dynamic turnover, consistent with a liquid state. Our observations are in quantitative agreement with phase-separated liquid droplet formation driven by interacting proteins under thermal equilibrium that nucleate following diffusive collisions in the cytoplasm. We have discovered aggresomes in multiple species of bacteria, and show that these emergent, metastable liquid-structured protein assemblies increase bacterial fitness by enabling cells to tolerate environmental stresses. One Sentence Summary Bacteria use subcellular proteinaceous liquid droplets to survive stress
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影响因子:
3.5
作者:
CHEREPANOV, PP;WACKERNAGEL, W
通讯作者:
WACKERNAGEL, W
影响因子:
3.2
作者:
CAYLEY, S;RECORD, MT;LEWIS, BA
通讯作者:
LEWIS, BA
DOI:
10.1093/bioinformatics/bts537
发表时间:
2012-11-15
期刊:
Bioinformatics (Oxford, England)
影响因子:
--
作者:
Kalwarczyk T;Tabaka M;Holyst R
通讯作者:
Holyst R
影响因子:
2.7
作者:
Giacalone, MJ;Gentile, AM;Surber, MW
通讯作者:
Surber, MW
影响因子:
3.6
作者:
Hu, ZL;Lutkenhaus, J
通讯作者:
Lutkenhaus, J