RECOMBINANT PLASMID DNA PGDN, METHOD OF PREPARING RECOMBINANT PLASMID DNA PGDN AND STRAIN OF BACTERIUM ESCHERICHIA COLI CONTAINING RECOMBINANT PLASMID DNA PGDN USED FOR PREPARING THE HYBRID PROTEIN CONSISTING OF 579 AMINO ACIDS AND SHOWING ANTIGENIC PROPERTIES OF HUMAN VIRUS T-CELLULAR LEUKOSIS THE FIRST TYPE Russian patent published in 1997 - IPC

Abstract RU 2081171 C1

FIELD: biotechnology, genetic engineering. SUBSTANCE: invention relates to methods of detection of human virus T-cellular leukosis the first type (HTLV-1). Method involves preparing recombinant plasmid DNA providing high level of hybrid gag-protein HTLV-1 production showing antigenic property and preparing the strain-producer of the indicated protein. Plasmid pGdN is obtained by fusion of plasmid pVR-290 fragment encoding E. coli β-galactosidase, two polylinkers, start replication region and gene determining the resistance to ampicillin with plasmid MT2 fragment containing the sequence of gag-protein HTLV-1. E. coli cells were transformed with the obtained plasmid and the strain GKV/pGdN is selected. This strain produces hybrid protein containing virus-specific sequence of gene gag HTLV-1. After the strain GKV/pGdN culturing the yield of protein showing antigenic properties of HTLV-1 is 400-500 mg/1 l cell suspension. EFFECT: improved method of plasmid preparing, enhanced effectiveness of strain-producer. 4 cl, 3 dwg

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RU 2 081 171 C1

Authors

Garaev M.M.

Bobkov A.F.

Sankov M.N.

Dates

1997-06-10Published

1993-12-30Filed