Author: Sun, Mei-Ling; Piao, Jin-Hua; Yin, Chang-Cheng; Yang, Gong-She; Huang, Hua-Liang
Title: [A preliminary study of the structure prediction and expression of SARS-CoV spike protein]. Cord-id: x55bdcy5 Document date: 2005_1_1
ID: x55bdcy5
Snippet: In this study, the encoding sequences of SARS-CoV spike protein were analyzed by bioinformatics methods, the structural characteristics and functions were forecasted based on available data. It suggests that the fragment of spike glycoprotein (S401-659) may be crucial for viral attachment and may be a major immunodominant epitope. Then the fragment was amplified and subcloned into expression vector pET28a(+) and pPIC9K. These two plasmids pET28a(+)-S and pPIC9K-S were transformed to E.coli strai
Document: In this study, the encoding sequences of SARS-CoV spike protein were analyzed by bioinformatics methods, the structural characteristics and functions were forecasted based on available data. It suggests that the fragment of spike glycoprotein (S401-659) may be crucial for viral attachment and may be a major immunodominant epitope. Then the fragment was amplified and subcloned into expression vector pET28a(+) and pPIC9K. These two plasmids pET28a(+)-S and pPIC9K-S were transformed to E.coli strain BL21(DE3)-star and Pichia pastoris, respectively. SDS-PAGE and Western blot analysis showed that the recombinant protein was successfully expressed. The denatured inclusion bodies were purified with Ni-NTA chelate agarose and its purity can reach 90%.
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