electrophoretic migration rate differences were detected in high resolution sds polyacrylamide gels for nucleoprotein ( np ) , matrix protein ( m ) , non structural protein ( ns1 ) , haemagglutinin ( ha ) annd , less regularly , for the polymerase polypeptides p1 , p2 and p3 induced by different influenza a viruses .
C0028612
nucleoprotein
C0033684
protein