摘要:
A method for extracellularly producing an ectoprotein of hepatitis C virus comprises the steps of cultivating a transformant which is transformed with an expression vector containing a DNA fragment coding for the ectoprotein of hepatitis C virus and recovering the ectoprotein of hepatitis C virus extracellularly produced by the transformant. The protein originated from the E1 region prepared by the method can be used as a material for preparing a vaccine for preventing HCV infection. In addition, a diagnostic agent containing the protein is useful for the detection of an HCV antibody or the confirmation of the presence thereof in sera or the like. In other words, the protein of the present invention permits the diagnosis or C type hepatitis in high specificity and sensitivity.
摘要:
A method for extracellularly producing an ectoprotein of hepatitis C virus comprises the steps of cultivating a transformant which is transformed with an expression vector containing a DNA fragment coding for the ectoprotein of hepatitis C virus and recovering the ectoprotein of hepatitis C virus extracellularly produced by the transformant. The protein originated from the E1 region prepared by the method can be used as a material for preparing a vaccine for preventing HCV infection. In addition, a diagnostic agent containing the protein is useful for the detection of an HCV antibody or the confirmation of the presence thereof in sera or the like. In other words, the protein of the present invention permits the diagnosis or C type hepatitis in high specificity and sensitivity.
摘要:
The antigenic peptide represented by the following amino acid sequence; and a method of the detection of anti-HCV antibodies wherein the above peptide is brought into contact with a sample under the conditions that the peptide is bound to anti-HCV antibodies present in the sample to form an immunological complex and the formation of the immunological complex is measured to confirm the existence of the anti-HCV antibodies in the sample. The method is highly specific and sensitive to anti-HCV antibodies.
摘要:
A diagnostic reagent for hepatitis C, which detects an antibody induced by infection of hepatitis C virus, characterized in that said diagnostic reagent comprises the second envelope protein or the first non-structural protein which is encoded by the gene of hepatitis C virus and has a suger chain. This invention also provide a method for detecting an anti-hepatitis C virus antibody. The use of the diagnostic reagent for hepatitis C according to the present invention makes highly sensitive diagnosis of hepatitis C possible.