کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8359379 | 1542291 | 2018 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High level expression and glycosylation of recombinant Mycobacterium tuberculosis Ala-Pro-rich antigen in Pichia pastoris
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
زیست شیمی
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چکیده انگلیسی
The Ala-Pro-rich Antigen (Apa) from Mycobacterium tuberculosis is a mannosylated protein with immunogenic and antigenic properties. The O-mannosylation is essential for its biological function in the process of colonization and invasion of host cells by M. tuberculosis. In this work, the gene encoding Apa was cloned from M. tuberculosis and expressed in Pichia pastoris GS115. In shake-flasks, the recombinant Apa was secreted into the culture media and purified with a yield of 0.6â¯g/L. Both N- and O-glycans were found in recombinant Apa. In P. pastoris the known M. tuberculosis-derived O-glycosites of Apa were modified with short chains of mannose units, and a few additional glycosylation sites were also observed. Therefore, the recombinant Apa expressed in P. pastoris has similar but not identical O-mannose patterns to the native protein from M. tuberculosis. P. pastoris and mycobacteria share similarities in the protein O-glycosylation pathway. Thus P. pastoris could be a potential powerful expression system to produce mycobacteria-derived glycoproteins.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Protein Expression and Purification - Volume 150, October 2018, Pages 67-71
Journal: Protein Expression and Purification - Volume 150, October 2018, Pages 67-71
نویسندگان
Shengjun Wang, Yaoguang Wang, Peng George Wang, Min Chen, Yun Kong,