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  • Title: Primary structure of influenza virus genome regions coding for polypeptides from the major antigenic sites of H3 hemagglutinin.
    Author: Pljusnin AZ, Migunova BW, Rivkin MJ, Obukhova LV, Kumarev VP, Kuznetsov OK.
    Journal: Virologie; 1986; 37(2):115-9. PubMed ID: 3727394.
    Abstract:
    Nucleotide sequences for some regions of the hemagglutinin (HA) gene of influenza virus A/Leningrad/385/80 (H3N2) were analyzed. A double-stranded complementary DNA was synthesized on the influenza genome RNA in the presence of synthetic oligodeoxyribonucleotides A GCAAAAGCAGG and A GTAGAAACAAG and inserted into the Pst I-site of the pBR322 plasmid through G-C-tailing. Nucleotide sequences were determined by a solid phase modification of the Maxam and Gilbert procedure. A comparison of our data with those for influenza virus A/Bangkok/1/79, which is the nearest sequenced prototype of the strain investigated, revealed only two base changes in the variable region of the HA gene. One of them was accompanied by a change in the coded amino acid (Asp53----Tyr) located in the antigenic site E of the HA glycoprotein. There also were some point mutations in the constant region of the gene. The results obtained are discussed in terms of the evolution of "Hong Kong" influenza viruses during their circulation.
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