FIELD: medicine.
SUBSTANCE: invention refers to biotechnology and immunology. There are presented optimised genes of light and heavy chains of Infliximab, an anti-tumour necrosis factor alpha (TNF-alpha) antibody, as well as a cell line VKPM-N-131, and a method for antibody biosynthesis. Nucleotide sequences of the genes coding the light and heavy chains of Infliximab are optimised in order to provide the content of codones most specific for mammals; the G/C content is expected to make 50-60% of the total composition; the absence of expanded tracts of a degenerate composition and the absence of RNA secondary structures.
EFFECT: Chinese hamster ovary cell line (CHO) produced by transfection by expression structures containing the genetic sequences according to the invention, enables producing at least 50 mg/l of the monoclonal antibody Infliximab.
4 cl, 3 dwg, 4 ex
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