>gi|77812682 inorganic pyrophosphatase 2 isoform 4 precursor [Homo sapiens] MSALLRLLRTGAPAAACLRLGTSAGTGSRRAMALYHTEERGQPCSQNYRL FFNIDDVKKFKPGYLEATLNWFRLYKVPDGKPENQFAFNGEFKNKAFALE VIKSTHQCWKALLMKKCNGGAINCTNVQISDSPFRCTQEEARSLVESVSS SPNKESNEEEQVWHFLGK