Two M-T hook residues greatly improve the antiviral activity and resistance profile of the HIV-1 fusion inhibitor SC29EK.
Two M-T hook residues greatly improve the antiviral activity and resistance profile of the HIV-1 fusion inhibitor SC29EK.
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两个 M-T 钩残基大大提高了 HIV-1 融合抑制剂 SC29EK 的抗病毒活性和耐药性
DOI:
10.1186/1742-4690-11-40
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发表时间:
2014-05-27
期刊:
影响因子:
3.3
通讯作者:
He Y
中科院分区:
文献类型:
--
作者:
Chong H;Qiu Z;Sun J;Qiao Y;Li X;He Y
Background:Peptides derived from the C-terminal heptad repeat (CHR) of HIV-1 gp41 such as T20 (Enfuvirtide) and C34 are potent viral fusion inhibitors. We have recently found that two N-terminal residues (Met115 and Thr116) of CHR peptides form a unique M-T hook structure that can greatly enhance the binding and anti-HIV activity of inhibitors. Here, we applied two M-T hook residues to optimize SC29EK, an electrostatically constrained peptide inhibitor with a potent anti-HIV activity.Results:The resulting peptide MT-SC29EK showed a dramatically increased binding affinity and could block the six-helical bundle (6-HB) formation more efficiently. As expected, MT-SC29EK potently inhibited HIV-1 entry and infection, especially against those T20- and SC29EK-resistant HIV-1 variants. More importantly, MT-SC29EK and its short form (MT-SC22EK) suffered from the difficulty to induce HIV-1 resistance during the in vitro selection, suggesting their high genetic barriers to the development of resistance.Conclusions:Our studies have verified the M-T hook structure as a vital strategy to design novel HIV-1 fusion inhibitors and offered an ideal candidate for clinical development.
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影响因子:
64.5
作者:
Eckert, DM;Malashkevich, VN;Kim, PS
通讯作者:
Kim, PS
DOI:
10.1073/pnas.0807335105
发表时间:
2008-10-21
影响因子:
11.1
作者:
He, Yuxian;Cheng, Jianwei;Dai, Qiuyun
通讯作者:
Dai, Qiuyun
DOI:
10.1073/pnas.95.26.15613
发表时间:
1998-12-22
影响因子:
11.1
作者:
Chan, DC;Chutkowski, CT;Kim, PS
通讯作者:
Kim, PS
DOI:
10.1056/nejmoa0803152
发表时间:
2008-10-02
期刊:
The New England journal of medicine
影响因子:
--
作者:
Gulick RM;Lalezari J;Goodrich J;Clumeck N;DeJesus E;Horban A;Nadler J;Clotet B;Karlsson A;Wohlfeiler M;Montana JB;McHale M;Sullivan J;Ridgway C;Felstead S;Dunne MW;van der Ryst E;Mayer H;MOTIVATE Study Teams
通讯作者:
MOTIVATE Study Teams
影响因子:
5.4
作者:
Eggink, Dirk;Bontjer, Ilja;Sanders, Rogier W.
通讯作者:
Sanders, Rogier W.