N-terminal Domain of TDP43 Enhances Liquid-Liquid Phase Separation of Globular Proteins.
N-terminal Domain of TDP43 Enhances Liquid-Liquid Phase Separation of Globular Proteins.
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DOI:
10.1016/j.jmb.2021.166948
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发表时间:
2021-05-14
影响因子:
5.6
通讯作者:
Zhang X
中科院分区:
文献类型:
--
作者:
Carter GC;Hsiung CH;Simpson L;Yang H;Zhang X
Liquid-liquid phase separation (LLPS) of proteins is involved in a growing number of cellular processes. Most proteins with LLPS harbor intrinsically disordered regions (IDR), which serve as a guideline to search for cellular proteins that potentially phase separate. Herein, we reveal that oligomerization lowers the barriers for LLPS and could act as a general mechanism to enhance LLPS of proteins domains independent of IDR. Using TDP43 as a model system, we found that deleting its IDR resulted in LLPS that was dependent on the oligomerization of the N-terminal domain (NTD). Replacing TDP43’s NTD with other oligomerization domains enhanced the LLPS proportionately to the state of oligomerization. In addition to TDP43, fusing NTD to other globular proteins without known LLPS behavior also drove their separation in a manner dependent on oligomerization. Finally, we demonstrate that heterooligomers composed of NTD-fused proteins can be driven into droplets through NTD interactions. Our results potentiate a new paradigm for using oligomerization domains as a signature to systematically identify cellular proteins with LLPS behavior, thus broadening the scope of this exciting research field.
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影响因子:
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作者:
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通讯作者:
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DOI:
10.1083/jcb.201302044
发表时间:
2013-04-29
期刊:
The Journal of cell biology
影响因子:
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影响因子:
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