摘要:
Industrially useful method for the purification of HBs antigen produced by a recombinant organism being capable of producing HBs antigen which is prepared by means of DNA recombination technique, which comprises subjecting an HBs antigen-containing material produced by a recombinant organism to an adsorption chromatography with a silica, optionally followed by a gel filtration and further an adsorption chromatography with a hydroxyapatite, and then eluting the HBs antigen, preferably, with a buffer having a pH 9 or more which is incorporated with urea. The purification method can give a highly pure HBs antigen suitable for the preparation of hepatitis B vaccine in a large scale from recombinant organisms prepared by DNA recombination technique.
摘要:
A method for purification of HBs antigen, which comprises treating an HBs tigen-containing material with an acid, optionally subjecting to salting out with ammonium sulfate, and subjecting the material to a chromatography with hydroxyapatite, by which a highly purified HBs antigen suitable for the preparation of HBV vaccine or diagnostic agent can be obtained in an industrial scale. This method is particularly useful for the purification of HBs antigen-containing material produced by recombinants obtained by DNA recombination technique.
摘要:
A method for the purification of HBc antigen, particularly HBc antigen produced by recombinant organisms by means of DNA recombination technique, which comprises subjecting a solution containing HBc antigen to acid-treatment, wherein the solution containing HBc antigen is acidified to a pH range of not higher than 6 by adding an acid and then resulting precipitates of lipid and contaminant proteins are removed, and then subjecting the acid-treated solution containing HBc antigen to an ion exchange chromatography with an anion exchanger, and a method for measuring HBc antibody by using said purified HBc antigen in a passive hemagglutination method, EIA method or RIA method.