FIELD: medicine.
SUBSTANCE: invention represents a method of producing a recombinant antibody or its fragment that involves transforming E.coli cell which does not have a pyrC coding gene, or its homologue; a vector including the gene coding said recombinant antibody or its fragment and the wild E.coli pyrC gene, cultivation of specified said E.coli cell in a pyrimidine restriction environment and recovery of said antibody or its fragment.
EFFECT: invention allows high effective production of recombinant antibodies.
10 cl, 5 dwg, 5 ex, 5 tbl
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