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  • Title: Correlation of influenza A virus nucleoprotein genes with host species.
    Author: Bean WJ.
    Journal: Virology; 1984 Mar; 133(2):438-42. PubMed ID: 6710867.
    Abstract:
    The RNAs coding for the nucleoproteins of a panel of influenza isolates from human and nonhuman hosts were compared by RNA-RNA hybridization to determine the extent of genetic diversity of this protein and to determine if related nucleoproteins (NP) are consistently found in viruses from certain hosts. Five nucleoprotein groups were defined. Group 1 contains nearly all of the avian influenza viruses, group 2 includes only certain viruses isolated from gulls, group 3 includes all recent equine influenza strains, group 4 contains only equine/Prague/1/56, and group 5 contains all human and swine influenza isolates. The maintenance of specific nucleoproteins in viruses from certain species suggests that these proteins have evolved functionally significant differences that favor their replication in a specific host.
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