The SARS-CoV-2 protein ORF3a inhibits fusion of autophagosomes with lysosomes.
The SARS-CoV-2 protein ORF3a inhibits fusion of autophagosomes with lysosomes.
复制标题
SARS-CoV-2 蛋白 ORF3a 抑制自噬体与溶酶体的融合
DOI:
10.1038/s41421-021-00268-z
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发表时间:
2021-05-04
期刊:
影响因子:
33.5
通讯作者:
Lu K
中科院分区:
文献类型:
--
作者:
Zhang Y;Sun H;Pei R;Mao B;Zhao Z;Li H;Lin Y;Lu K
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused the ongoing coronavirus disease 2019 pandemic. How SARS-CoV-2 regulates cellular responses to escape clearance by host cells is unknown. Autophagy is an intracellular lysosomal degradation pathway for the clearance of various cargoes, including viruses. Here, we systematically screened 28 viral proteins of SARS-CoV-2 and identified that ORF3a strongly inhibited autophagic flux by blocking the fusion of autophagosomes with lysosomes. ORF3a colocalized with lysosomes and interacted with VPS39, a component of the homotypic fusion and protein sorting (HOPS) complex. The ORF3a–VPS39 interaction prohibited the binding of HOPS with RAB7, which prevented the assembly of fusion machinery, leading to the accumulation of unfused autophagosomes. These results indicated the potential mechanism by which SARS-CoV-2 escapes degradation; that is, the virus interferes with autophagosome–lysosome fusion. Furthermore, our findings will facilitate strategies targeting autophagy for conferring potential protection against the spread of SARS-CoV-2.
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DOI:
10.1083/jcb.201804028
发表时间:
2018-10-01
期刊:
The Journal of cell biology
影响因子:
--
作者:
Bas L;Papinski D;Licheva M;Torggler R;Rohringer S;Schuschnig M;Kraft C
通讯作者:
Kraft C
影响因子:
7.7
作者:
Ge L;Zhang M;Schekman R
通讯作者:
Schekman R
DOI:
10.1038/s41579-018-0003-6
发表时间:
2018-06
期刊:
Nature reviews. Microbiology
影响因子:
--
作者:
Choi Y;Bowman JW;Jung JU
通讯作者:
Jung JU
影响因子:
13.2
作者:
Chan, Jasper Fuk-Woo;Kok, Kin-Hang;Yuen, Kwok-Yung
通讯作者:
Yuen, Kwok-Yung
影响因子:
64.8
作者:
Hoffmann, Markus;Moesbauer, Kirstin;Poehlmann, Stefan
通讯作者:
Poehlmann, Stefan