A global map of the Zika virus phosphoproteome reveals host-driven regulation of viral budding
A global map of the Zika virus phosphoproteome reveals host-driven regulation of viral budding
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寨卡病毒磷酸化蛋白质组的全球图谱揭示了宿主驱动的病毒出芽调节
DOI:
10.1101/2021.11.24.469793
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Manuelyan I
中科院分区:
文献类型:
--
作者:
Manuelyan I
Flaviviruses are enveloped, positive-strand RNA viruses that cause millions of infections in the human population annually. Although Zika virus (ZIKV) had been detected in humans as early as the 1950s, its reemergence in South America in 2015 resulted in a global health crisis. While flaviviruses encode 10 proteins that can be post-translationally modified by host enzymes, little is known regarding post-translational modifications (PTMs) of the flavivirus proteome. We used mass spectrometry to comprehensively identify host-driven PTMs on the ZIKV proteome. This approach allowed us to identify 43 PTMs across 8 ZIKV proteins, including several that are highly conserved within theFlavivirusgenus. Notably, we found two phosphosites on the ZIKV envelope protein that are functionally important for viral propagation and appear to regulate viral budding. Additionally, we discovered 115 host kinases that interacted with ZIKV proteins and determined that Bosutinib, an FDA-approved tyrosine kinase inhibitor that targets ZIKV interacting host kinases, impairs ZIKV growth. Thus, we have defined a high-resolution map of host-driven PTMs on ZIKV proteins as well as cellular interacting kinases, uncovered a novel mechanism of host driven-regulation of ZIKV budding, and identified an FDA-approved inhibitor of ZIKV growth.
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