期刊
CELL
卷 183, 期 7, 页码 1785-+出版社
CELL PRESS
DOI: 10.1016/j.cell.2020.11.001
关键词
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资金
- Swiss National Fond [SNF 31003A_179275]
- Swiss National Science Foundation (SNF) [31003A_179275] Funding Source: Swiss National Science Foundation (SNF)
All proteins interact with other cellular components to fulfill their function. While tremendous progress has been made in the identification of protein complexes, their assembly and dynamics remain difficult to characterize. Here, we present a high-throughput strategy to analyze the native assembly kinetics of protein complexes. We apply our approach to characterize the co-assembly for 320 pairs of nucleoporins (NUPs) constituting the approximate to 50 MDa nuclear pore complex (NPC) in yeast. Some NUPs co-assemble fast via rapid exchange whereas others require lengthy maturation steps. This reveals a hierarchical principle of NPC biogenesis where individual subcomplexes form on a minute timescale and then co-assemble from center to periphery in a similar to 1 h-long maturation process. Intriguingly, the NUP MIp1 stands out as joining very late and associating preferentially with aged NPCs. Our approach is readily applicable beyond the NPC, making it possible to analyze the intracellular dynamics of a variety of multiprotein assemblies.
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