Ecoli strain - producer of full-dimensional protective bacillus anthracis antigen in form of virus-like particles

FIELD: biotechnology. SUBSTANCE: presented strain was derived from the protective Bacillus anthracis antigen by inserting the pGEM-TTPPAG plasmids into the E. coli strain BL21 (DE3). The plasmid pGEM-TTPPAG contains a T7 phage promoter that controls the expression of a fusion gene that is a full-length TTR bacteriophage DT57C gene (encodes the pb6 tail tube protein) fused at the 3'-end with the B. anthracis protective antigen gene and expressed in the form of virus-like particles. The obtained HPV, free of soluble cell protein, can be used as an antigen for immunization. EFFECT: increasing the yield of the target product under optimal cultivation conditions, obtaining the main protective antigen of the causative agent of the anthrax in the form of virus-like particles, which facilitates its purification and potentially increases immunogenicity. 5 dwg, 3 tbl