کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10770422 | 1050833 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Structural characterization of the fusion core in syncytin, envelope protein of human endogenous retrovirus family W
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Structural characterization of the fusion core in syncytin, envelope protein of human endogenous retrovirus family W Structural characterization of the fusion core in syncytin, envelope protein of human endogenous retrovirus family W](/preview/png/10770422.png)
چکیده انگلیسی
Syncytin is a captive retroviral envelope protein, possibly involved in the formation of the placental syncytiotrophoblast layer generated by trophoblast cell fusion at the maternal-fetal interface. We found that syncytin and type I viral envelope proteins shared similar structural profiling, especially in the regions of N- and C-terminal heptad repeats (NHR and CHR). We expressed the predicted regions of NHR (41 aa) and CHR (34 aa) in syncytin as a native single chain (named 2-helix protein) to characterize it. 2-helix protein exists as a trimer and is highly α-helix, thermo-stable, and denatured by low pH. NHR and CHR could form a protease-resistant complex. The complex structure built by the molecular docking demonstrated that NHR and CHR associated in an antiparallel manner. Overall, the 2-helix protein could form a thermo-stable coiled coil trimer. The fusion core structure of syncytin was first demonstrated in endogenous retrovirus. These results support the explanation how syncytin mediates cytotrophoblast cell fusion involved in placental morphogenesis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Biochemical and Biophysical Research Communications - Volume 331, Issue 4, 17 June 2005, Pages 1193-1200
Journal: Biochemical and Biophysical Research Communications - Volume 331, Issue 4, 17 June 2005, Pages 1193-1200
نویسندگان
Rui Gong, Xiaoxue Peng, Shuli Kang, Huixing Feng, Jianying Huang, Wentao Zhang, Donghai Lin, Po Tien, Gengfu Xiao,