کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10843768 1069292 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Expression of a novel recombinant stem cell factor/macrophage colony-stimulating factor fusion protein in baculovirus-infected insect cells
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Expression of a novel recombinant stem cell factor/macrophage colony-stimulating factor fusion protein in baculovirus-infected insect cells
چکیده انگلیسی
A novel human stem cell factor (SCF)/macrophage colony-stimulating factor (M-CSF) fusion protein gene was constructed, in which the coding regions of human SCF cDNA (1-165aa) and the truncated M-CSF cDNA (1-149aa) were connected by a linker sequence encoding a short peptide GGGGSGGGGSGG. The SCF/M-CSF gene was cloned into baculovirus transfer vector pVL1392 under the control of polyhedrin promoter and expressed in the Sf9 cells (Spodoptera frugiperda). SDS-PAGE and Western blot analysis showed that the purified fusion protein was a homodimer with a molecular weight about 84 kDa under non-reducing conditions or a monomer about 42 kDa under reducing conditions. The specific activity of rhSCF/M-CSF was 17 times as high as that of monomeric rhSCF to stimulate the proliferation of TF-1 cell. The results of macrophages colony-forming (CFU-M) assay performed with human bone marrow mononuclear cells demonstrated that rhSCF/M-CSF was more potent in promoting CFU-M than the equimolar of SCF, M-CSF or that of two cytokines mixture.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Protein Expression and Purification - Volume 41, Issue 2, June 2005, Pages 402-408
نویسندگان
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