Functional Insights into ANP32A-Dependent Influenza A Virus Polymerase Host Restriction.
Functional Insights into ANP32A-Dependent Influenza A Virus Polymerase Host Restriction.
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DOI:
10.1016/j.celrep.2017.08.061
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发表时间:
2017-09-12
期刊:
影响因子:
8.8
通讯作者:
Hale BG
中科院分区:
文献类型:
--
作者:
Domingues P;Hale BG
Host restriction of influenza A virus limits pandemic emergence. The viral RNA polymerase (vPol) is an essential enzyme that must adapt for avian viruses to replicate in humans. Species differences in host ANP32A dictate adaptation: human ANP32A lacks an uncharacterized 33 amino-acid insertion that is present in avian ANP32A. Here, we uncover important contributions of host SUMOylation to vPol activity, including avANP32A function. We also identify a hydrophobic SUMO interaction motif (SIM)-like sequence unique to avANP32A that critically supports avian-signature vPol. Unrelated SIM sequences partially recapitulate this function when introduced into huANP32A. By investigating ANP32A-vPol interactions, we find that huANP32A interacts weakly with both human- and avian-signature vPols, while the hydrophobic motif of avANP32A promotes stronger interactions. Furthermore, we identify a highly acidic stretch in avANP32A that constitutes a major site of vPol interaction. Our data suggest compensatory mechanisms underlying vPol adaptation to host ANP32A independent of species-specific interactions. Host SUMOylation contributes to influenza A virus polymerase (vPol) activity Avian ANP32A harbors a unique hydrophobic SUMO interaction motif-like sequence Avian ANP32A hydrophobic motif enhances vPol interaction to overcome restriction Interactions between ANP32A and vPol are independent of PB2-627 identity Species differences in cellular ANP32A dictate influenza A virus polymerase host restriction. Domingues and Hale describe the contribution of host SUMOylation to viral polymerase activity and identify a SUMO interaction motif-like sequence unique to avian ANP32A that promotes interaction with the viral polymerase and is critical for determining host range.
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DOI:
10.1084/jem.20161015
发表时间:
2017-04-03
期刊:
The Journal of experimental medicine
影响因子:
--
作者:
Hu MM;Liao CY;Yang Q;Xie XQ;Shu HB
通讯作者:
Shu HB
影响因子:
64.8
作者:
ALMOND, JW
通讯作者:
ALMOND, JW
影响因子:
4
作者:
Reilly, Patrick T.;Yu, Yun;Hamiche, Ali;Wang, Lishun
通讯作者:
Wang, Lishun
影响因子:
16.6
作者:
Lamoliatte, Frederic;Caron, Danielle;Thibault, Pierre
通讯作者:
Thibault, Pierre
影响因子:
64.5
作者:
Sowa ME;Bennett EJ;Gygi SP;Harper JW
通讯作者:
Harper JW