METHOD OF OBTAINING RECOMBINANT ANTIGEN G2 OF DOBRAVA HANTAVIRUS IN E.coli CELLS

FIELD: chemistry. SUBSTANCE: invention relates to biotechnology and a method of obtaining a recombinant antigen G2 of hantaviruses. The disclosed method is characterised by that the DNA structure pGHF, which encodes a fused protein of three parts, where N-terminal position is occupied by a green fluorescent protein GFP, central position is occupied by a peptide of 73 amino acid residues with the amino acid sequence SRKKCNFATTPICEYDGNMVSGYKKVMATIDSFQAFNTSYIHYTDEQIEW KDPDGMLKDHLNILVTKDIDFDT, and the C-terminal position is occupied by a mini-domain Foldon of coliphage fibritin JS98C3 (dwg 2), is introduced into E. coli cells; cells transformed by this structure are cultured, the biomass is lysed, the insoluble fraction of the lysate is separated by centrifuging, the product of expression in the form of inclusion bodies is solubilised with methylated spirit, chromatography is carried out and the obtained product is used to detect specific antibodies in serum of patients with hemorrhagic fever with renal syndrome. EFFECT: disclosed solution improves repeatability and sensitivity of immunoenzymatic assay when diagnosing hemorrhagic fever with renal syndrome. 7 dwg