摘要
We have constructed an expression plasmid for regulated expression of the hepatitis B surface antigen gene in yeast using promoter of the yeast Pho5 gene. In the yeast transformants, the monomeric HBsAg (22K dalton) was estimated to constitute approximately 3% of the total proteins. On extraction, the HBsAg was found to have a bouyant density of 1.18 g/ml and an SW.20 value of 54. Electron microscopy revealed particles of heterogeneous size ranging from 18-28 nm. When the yeast HBsAg was used to immunize guinea pigs, the anti-HBsAg antibodies produced could react with human serum HBsAg.
| 原文 | 英語 |
|---|---|
| 頁(從 - 到) | 160-166 |
| 頁數 | 7 |
| 期刊 | Biochemical and Biophysical Research Communications |
| 卷 | 131 |
| 發行號 | 1 |
| DOIs | |
| 出版狀態 | 已出版 - 30 08 1985 |
| 對外發佈 | 是 |
UN SDG
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指紋
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