>sp|A4GCJ8-1|M2_I80AA Isoform M2 of Matrix protein 2 OS=Influenza A virus (strain A/India/6263/1980 H1N1) OX=393562 GN=M MSLLTEVETPIRNEWGCRCNDSSDPLVVAASIIGILHLILWILDRLFFKCIYRLFKHGLK RGPSTEGVPESMREEYREEQQNAVDADDGHFVSIELE