Cloning and expression of the preS1 gene of hepatitis B virus in yeast cells

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【正】 Objective: To investigate the complex functions ofHBV preS1 protein, we constructed HBV preS1 geneexpression vector and expressed it in yeast cells.Methods: Polymerase chain reaction (PCR) was per-formed to amplify the gene of HBV preS1 from theplasmi
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