کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8360123 | 1542328 | 2015 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Construction and development of a novel expression system of Streptomyces
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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
Streptomyces is well known to be an attractive host for producing large amounts of proteins with potent biological activities into the culture supernatant. To expand its expression system, we constructed a novel expression plasmid for gene expression in Streptomyces by inserting the promoter (Ptg) and the signal peptide (SPtg) of transglutaminase (TGase) from Streptomyces hygroscopicus WSH03-13 into vector pIJ86, followed by multiple cloning sites and a transcriptional terminator fd (fd-ter). The secretion capacity of the vector was further enhanced by optimizing the signal peptidase cleavage site and a rare codon of SPtg, yielding expression vector pSG02. Using this vector, TGase was actively and greatly expressed in the supernatant in several Streptomyces strains. In addition, the heterologous proteins aminopeptidase from Bacillus subtilis Zj016 (BSAP) and phenylalanine ammonia-lyase from Rhodotorula glutinis (PAL) were also expressed in various Streptomyces strains by this vector. This expression system should be useful for the expression of other proteins.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Protein Expression and Purification - Volume 113, September 2015, Pages 17-22
Journal: Protein Expression and Purification - Volume 113, September 2015, Pages 17-22
نویسندگان
Chengran Guan, Wenjing Cui, Xiaotian He, Xu Hu, Jun Xu, Guocheng Du, Jian Chen, Zhemin Zhou,