APOBEC3 proteins can copackage and comutate HIV-1 genomes.
APOBEC3 proteins can copackage and comutate HIV-1 genomes.
复制标题
DOI:
10.1093/nar/gkw653
复制
发表时间:
2016-09-19
影响因子:
14.9
通讯作者:
Pathak VK
中科院分区:
文献类型:
--
作者:
Desimmie BA;Burdick RC;Izumi T;Doi H;Shao W;Alvord WG;Sato K;Koyanagi Y;Jones S;Wilson E;Hill S;Maldarelli F;Hu WS;Pathak VK
Although APOBEC3 cytidine deaminases A3G, A3F, A3D and A3H are packaged into virions and inhibit viral replication by inducing G-to-A hypermutation, it is not known whether they are copackaged and whether they can act additively or synergistically to inhibit HIV-1 replication. Here, we showed that APOBEC3 proteins can be copackaged by visualization of fluorescently-tagged APOBEC3 proteins using single-virion fluorescence microscopy. We further determined that viruses produced in the presence of A3G + A3F and A3G + A3H, exhibited extensive comutation of viral cDNA, as determined by the frequency of G-to-A mutations in the proviral genomes in the contexts of A3G (GG-to-AG) and A3D, A3F or A3H (GA-to-AA) edited sites. The copackaging of A3G + A3F and A3G + A3H resulted in an additive increase and a modest synergistic increase (1.8-fold) in the frequency of GA-to-AA mutations, respectively. We also identified distinct editing site trinucleotide sequence contexts for each APOBEC3 protein and used them to show that hypermutation of proviral DNAs from seven patients was induced by A3G, A3F (or A3H), A3D and A3G + A3F (or A3H). These results indicate that APOBEC3 proteins can be copackaged and can comutate the same genomes, and can cooperate to inhibit HIV replication.
登录
查看更多内容
影响因子:
5.6
作者:
Desimmie, Belete A.;Delviks-Frankenberrry, Krista A.;Burdick, Ryan C.;Qi, DongFei;Izumi, Taisuke;Pathak, Vinay K.
通讯作者:
Pathak, Vinay K.
影响因子:
3.3
作者:
Ebrahimi D;Anwar F;Davenport MP
通讯作者:
Davenport MP
影响因子:
5.4
作者:
Burdick, Ryan;Smith, Jessica L.;Pathak, Vinay K.
通讯作者:
Pathak, Vinay K.
影响因子:
3.7
作者:
Hardy GA;Sieg S;Rodriguez B;Anthony D;Asaad R;Jiang W;Mudd J;Schacker T;Funderburg NT;Pilch-Cooper HA;Debernardo R;Rabin RL;Lederman MM;Harding CV
通讯作者:
Harding CV
影响因子:
4.5
作者:
Armitage AE;Deforche K;Chang CH;Wee E;Kramer B;Welch JJ;Gerstoft J;Fugger L;McMichael A;Rambaut A;Iversen AK
通讯作者:
Iversen AK