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[Obtaining human recombinant (serine-17) beta-interferon by the method of oligonucleotide-directed mutagenesis and
Abstract:
The gene of human mutant (serine-17) fibroblast interferon was isolated with the use of highly efficient oligonucleotide-directed mutagenesis. On the basis of the constructed expression plasmid pPR-IFN Ser17 a strain producing human mutant beta-interferon (VKPM V-4678) was developed. It was shown that the specific activity of the human mutant (serine-17) fibroblast interferon was 1 order of magnitude higher than that of the recombinant interferon which reaches the specific activity of natural fibroblast interferon.