The interface between methyltransferase and polymerase of NS5 is essential for flavivirus replication.
The interface between methyltransferase and polymerase of NS5 is essential for flavivirus replication.
复制标题
NS5 甲基转移酶和聚合酶之间的界面对于黄病毒复制至关重要
DOI:
10.1371/journal.pntd.0002891
复制
发表时间:
2014-05
影响因子:
3.8
通讯作者:
Zhang B
中科院分区:
文献类型:
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作者:
Li XD;Shan C;Deng CL;Ye HQ;Shi PY;Yuan ZM;Gong P;Zhang B
The flavivirus NS5 harbors both a methyltransferase (MTase) and an RNA-dependent RNA polymerase (RdRP). Both enzyme activities of NS5 are critical for viral replication. Recently, the full-length NS5 crystal structure of Japanese encephalitis virus reveals a conserved MTase-RdRP interface that features two conserved components: a six-residue hydrophobic network and a GTR sequence. Here we showed for the first time that these key interface components are essential for flavivirus replication by various reverse genetics approaches. Interestingly, some replication-impaired variants generated a common compensatory NS5 mutation outside the interface (L322F), providing novel routes to further explore the crosstalk between MTase and RdRP.
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