TRIM5α Restricts Flavivirus Replication by Targeting the Viral Protease for Proteasomal Degradation.
TRIM5α Restricts Flavivirus Replication by Targeting the Viral Protease for Proteasomal Degradation.
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DOI:
10.1016/j.celrep.2019.05.040
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发表时间:
2019-06-11
期刊:
影响因子:
8.8
通讯作者:
Best SM
中科院分区:
文献类型:
--
作者:
Chiramel AI;Meyerson NR;McNally KL;Broeckel RM;Montoya VR;Méndez-Solís O;Robertson SJ;Sturdevant GL;Lubick KJ;Nair V;Youseff BH;Ireland RM;Bosio CM;Kim K;Luban J;Hirsch VM;Taylor RT;Bouamr F;Sawyer SL;Best SM
Tripartite motif-containing protein 5α (TRIM5α) is a cellular antiviral restriction factor that prevents early events in retrovirus replication. The activity of TRIM5α is thought to be limited to retroviruses as a result of highly specific interactions with capsid lattices. In contrast to this current understanding, we show that both human and rhesus macaque TRIM5α suppress replication of specific flaviviruses. Multiple viruses in the tick-borne encephalitis complex are sensitive to TRIM5α-dependent restriction, but mosquito-borne flaviviruses, including yellow fever, dengue, and Zika viruses, are resistant. TRIM5α suppresses replication by binding to the viral protease NS2B/3 to promote its K48-linked ubiquitination and proteasomal degradation. Importantly, TRIM5α contributes to the antiviral function of IFN-I against sensitive flaviviruses in human cells. Thus, TRIM5α possesses remarkable plasticity in the recognition of diverse virus families, with the potential to influence human susceptibility to emerging flaviviruses of global concern. The antiviral activity of TRIM5α is thought to be limited to retroviruses as a result of highly specific interactions with capsid lattices. Here, Chiramel et al. demonstrate that TRIM5α restricts replication of specific flaviviruses by binding and degrading the viral protease.
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