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P300-mediated NEDD4 acetylation drives ebolavirus VP40 egress by enhancing NEDD4 ligase activity

PLoS Pathog. 2021-06; 
Linliang Zhang, Shixiong Zhou, Majuan Chen, Jie Yan, Yi Yang, Linjuan Wu, Dongning Jin, Lei Yin, Mingzhou Chen, Yali Qin
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Proteins, Expression, Isolation and Analysis After centrifugation, GST-VP40 proteins were purified with glutathione resins (GenScript, L00206) according to the manufacture’s protocols. Get A Quote

摘要

The final stage of Ebola virus (EBOV) replication is budding from host cells, where the matrix protein VP40 is essential for driving this process. Many post-translational modifications such as ubiquitination are involved in VP40 egress, but acetylation has not been studied yet. Here, we characterize NEDD4 is acetylated at a conserved Lys667 mediated by the acetyltransferase P300 which drives VP40 egress process. Importantly, P300-mediated NEDD4 acetylation promotes NEDD4-VP40 interaction which enhances NEDD4 E3 ligase activity and is essential for the activation of VP40 ubiquitination and subsequent egress. Finally, we find that Zaire ebolavirus production is dramatically reduced in P300 knockout cell lines, su... More

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