کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8359508 | 1542296 | 2018 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Expression and purification of biologically active bovine Interferon λ3 (IL28B) in Pichia pastoris
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موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
Interferon lambda-3 (IFNλ3) which is also known as IL28B is a member of type III Interferons which are structurally and genetically different from type I Interferons. These Interferons induce signal transduction pathways similar to type I Interferons which results in the activation of Interferon Stimulated Genes (ISGs). This group of Interferons are tissue specific and reported to have antiviral activity. In the present communication, we report the expression of bovine IFNλ3 gene (coding for the mature protein) in Pichia pastoris, purification of the expressed protein and evaluation of its biological activity. About 19â¯kDa protein expressed by the transformed Pichia cells, secreted into the media and the protein was purified by SP-Sepharose ion exchange chromatography with NaCl stepwise gradient elution. Specificity of the protein was confirmed by Western blotting. Pichia expressed IFNλ3 was found to be biologically active, as it induced ISGs (Mx protein, OAS and PKR genes) in bovine PBMCs. Further it was also found to modulate Th1/Th2 cytokines expression in the stimulated bovine PBMCs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Protein Expression and Purification - Volume 145, May 2018, Pages 14-18
Journal: Protein Expression and Purification - Volume 145, May 2018, Pages 14-18
نویسندگان
S. Barathiraja, P.A.V. Gangadhara, V. Umapathi, H.J. Dechamma, G.R. Reddy,