PPA2 GI:77812680 inorganic pyrophosphatase 2 isoform 3 precursor 1 msallrllrt gapaaaclrl gtsagtgsrr amalyhteer gqpcsqnyrl 50 51 ffknvtghyi spfhdiplkv nskeilscge vihvkilgil alidegetdw 100 101 kliainandp easkfhdidd vkkfkpgyle atlnwfrlyk vpdgkpenqf 150 151 afngefknka faleviksth qcwkallmkk cnggainctn vqisdspfrc 200 201 tqeearslve svssspnkes neeeqvwhfl gk