>sp|A4GCI7-1|M2_I36A0 Isoform M2 of Matrix protein 2 OS=Influenza A virus (strain A/Henry/1936 H1N1) OX=425562 GN=M MSLLTEVETPIRNEWGCRCNGSSDPLVIAANIIGILHLILWILDRLFFKCIYRLFEYGLK RGPSTEGVPESMREEYRKEQQSAVDADDGHFVSIELE