کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9282990 | 1224998 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Unique characteristics of HIV-1 Vif expression
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موضوعات مرتبط
علوم زیستی و بیوفناوری
ایمنی شناسی و میکروب شناسی
ایمونولوژی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We examined the steady-state expression in cells of four accessory proteins of human immunodeficiency virus type 1 (HIV-1). For this purpose, a series of single gene expression vectors for these viral proteins were constructed and were monitored for their production by transfection. Among them, the expression level of Vif was found to be lowest in both the absence and presence of APOBEC3G. In addition, we noticed the presence of its truncated form, which was not observed for the other accessory proteins. When a subgenomic vector was used for transfection, authentic and several small forms of Vif were produced. By mutational analysis, these forms were demonstrated to be mutant Vif proteins translated from M8, M16 and M29. When a full-length molecular clone was used, the smaller versions of Vif were hardly observed. Functional analysis of these mutant Vif proteins showed that they are incapable of modulating viral infectivity. The results described above, i.e. the low steady-state expression and the presence of truncated forms, represent the unique characteristics of HIV-1 Vif.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microbes and Infection - Volume 7, Issue 3, March 2005, Pages 385-390
Journal: Microbes and Infection - Volume 7, Issue 3, March 2005, Pages 385-390
نویسندگان
Huaqing Wang, Akiko Sakurai, Boonruang Khamsri, Tsuneo Uchiyama, Hongxi Gu, Akio Adachi, Mikako Fujita,