examination of the rna patterns of the two parent viruses and recombinants derived from them in concert with serological identification of surface proteins and analysis of the other proteins on sodium dodecyl sulfate gradient gels permitted the identification of the genes coding for hemagglutinin , neuraminidase , and the p1 , p2 , and p3 proteins ( palese and schulman , 1976 ; p. palese et al. , virology , in press ) .
C0025252
surface proteins
C0033684
proteins