Expresión y purificación del antígeno preS1/2 y su utilidad en el estudio de la patogenia de la infección por el virus de la hepatitis B
Resumen
Expression and purification of preS1/2 antigen and its usefulness in the hepatitis B virus pathogenesis study
Abstract
The preS1/2 belongs to the envelope proteins of the hepatitis B virus (HBV), and has an important role in the pathogenesis of the disease. A pure protein is important for their study, and thus elucidates their involvement in the liver tissue damage observed during the diseases. For this purpose preS1/2 previously cloned into the pET3d was expressed in E. coli strain HMS174 (DE3), subsequent was purified by affinity columns histidine residues (6xhistidine) and finally treated to release contaminants by using affinity columns endotoxin and filtration by centrifugation, thereby used it to assess their effect on human hepatocytes. The procedure yielded 1,5 mg pure protein per liter of culture medium, functionally stable. In this paper we describe a simple method of expression and purification of preS1/2, which is an intact product with potential use in functional studies and future therapeutic trials
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Depósito Legal: ppi201102ME3935 - ISSN: 2477-9369.
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