کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10843917 | 1069296 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Production and purification of recombinant human BLyS mutant from inclusion bodies
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
B lymphocyte stimulator (BLyS), a member of the tumor necrosis factor superfamily, is an important regulator of B cell homeostasis. In BLyS-deficient mice, B cell development is severely perturbed. On the other hand, mice transgenic for BLyS developed autoimmune disorders, such as increased germinal center formation, production of autoantibodies, and Ig deposition in kidneys. The overexpression of BLyS was found in some human autoimmune diseases. These findings suggest that BLyS has a crucial role in the humoral immune response and may be a therapeutic target for some human autoimmune diseases. To construct and express the therapeutic vaccine BLyS, we coupled a foreign immunodominant T-helper epitope to the N terminus of BLyS (named recombinant BLyS mutant, rBLySM) and expressed rBLySM in Escherichia coli. We have developed a purification process of rBLySM from inclusion bodies. A step-down urea concentration strategy was applied to the rBLySM renaturation process. By this strategy, a stable yield of 4.5Â mg purified rBLySM per gram of cell paste could be obtained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Protein Expression and Purification - Volume 42, Issue 1, July 2005, Pages 194-199
Journal: Protein Expression and Purification - Volume 42, Issue 1, July 2005, Pages 194-199
نویسندگان
Xiaochang Xue, Zenglu Wang, Zhen Yan, Jihong Shi, Wei Han, Yingqi Zhang,