Human 14-3-3 Proteins Site-selectively Bind the Mutational Hotspot Region of SARS-CoV-2 Nucleoprotein Modulating its Phosphoregulation.
Human 14-3-3 Proteins Site-selectively Bind the Mutational Hotspot Region of SARS-CoV-2 Nucleoprotein Modulating its Phosphoregulation.
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DOI:
10.1016/j.jmb.2022.167891
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发表时间:
2023-01-30
影响因子:
5.6
通讯作者:
Sluchanko, Nikolai N.
中科院分区:
文献类型:
--
作者:
Tugaeva, Kristina, V;Sysoev, Andrey A.;Kapitonova, Anna A.;Smith, Jake L. R.;Zhu, Phillip;Cooley, Richard B.;Antson, Alfred A.;Sluchanko, Nikolai N.
Phosphorylation of SARS-CoV-2 nucleoprotein recruits human cytosolic 14-3-3 proteins playing a well-recognized role in replication of many viruses. Here we use genetic code expansion to demonstrate that 14-3-3 binding is triggered by phosphorylation of SARS-CoV-2 nucleoprotein at either of two pseudo-repeats centered at Ser197 and Thr205. According to fluorescence anisotropy measurements, the pT205-motif, present in SARS-CoV-2 but not in SARS-CoV, is preferred over the pS197-motif by all seven human 14-3-3 isoforms, which collectively display an unforeseen pT205/pS197 peptide binding selectivity hierarchy. Crystal structures demonstrate that pS197 and pT205 are mutually exclusive 14-3-3-binding sites, whereas SAXS and biochemical data obtained on the full protein-protein complex indicate that 14-3-3 binding occludes the Ser/Arg-rich region of the nucleoprotein, inhibiting its dephosphorylation. This Ser/Arg-rich region is highly prone to mutations, as exemplified by the Omicron and Delta variants, with our data suggesting that the strength of 14-3-3/nucleoprotein interaction can be linked with the replicative fitness of the virus.
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影响因子:
5.9
作者:
Horvath M;Petrvalska O;Herman P;Obsilova V;Obsil T
通讯作者:
Obsil T
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
DOI:
10.1107/s0907444904016427
发表时间:
2004-12-01
影响因子:
2.2
作者:
Blanc, E;Roversi, P;Bricogne, G
通讯作者:
Bricogne, G
影响因子:
64.5
作者:
Bouhaddou, Mehdi;Memon, Danish;Krogan, Nevan J.
通讯作者:
Krogan, Nevan J.
DOI:
10.1042/bj20091834
发表时间:
2010-03-15
期刊:
The Biochemical journal
影响因子:
--
作者:
Johnson C;Crowther S;Stafford MJ;Campbell DG;Toth R;MacKintosh C
通讯作者:
MacKintosh C