title: Neuraminidase gene from the early Asian strain of human influenza virus, A/RI/5-/57 (H2N2).
abstract: The complete structure of the neuraminidase gene from the A/RI/5-/57 strain of influenza virus has been determined. It is 1467 nucleotides long and codes for a protein of 469 amino acid residues. Comparison with the gene sequence for the N1 strains A/WSN/33 and A/PR/8/34, the N2 strain A/Udorn/72 and the protein sequence for the N2 strain A/Tokyo/3/67 shows the amino acid sequence changes that have occurred during antigenic shift (60%) and drift (7-9%).
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D003001:Cloning, Molecular; D004262:DNA Restriction Enzymes; D005814:Genes, Viral; D053121:Influenza A Virus, H2N2 Subtype; D009980:Influenza A virus / Q000201:enzymology* / Q000235:genetics; D009439:Neuraminidase / Q000235:genetics*
chemical_list: D004262:DNA Restriction Enzymes; D009439:Neuraminidase