METHOD FOR PURIFICATION OF RECOMBINANT INTERFERON -1b

摘要

FIELD: medicine. ^ SUBSTANCE: proposed method of purification of human recombinant interferon beta-1b (rIFN beta-1b) provides for optimisation of processes of purification of inclusion bodies, their dissolution and refolding of target protein Purification of human rIFN beta-1b is conducted with zwittehent 3-14 as a main detergent for purification and dissolving of inclusion body of Ecoli with the following refolding of rIFN beta-1b. After that prechromatographic processing of a sample is conducted and after that chromatographic processing of Ceramic S and of Source S30 and oxidation using a mixture of cysteamine/cystamine are performed. Then gel-filtration on Superdex 75 Prep grade, chromatographic processing on Source Q30, gel-filtration on Sephacril S200HR are made and finally the effectiveness of purification of the target protein by high performance liquid chromatography is monitored. ^ EFFECT: raise of the target protein yields and obtaining human rIFN beta-1b which meets the requirements of normative documents with high levels of specific antiviral activity. ^ 5 tbl, 3 ex