GPX4 GI:75709200 glutathione peroxidase 4 isoform A precursor 1 mslgrlcrll kpallcgala apglagtmca srddwrcars mhefsakdid 50 51 ghmvnldkyr gfvcivtnva squgktevny tqlvdlhary aecglrilaf 100 101 pcnqfgkqep gsneeikefa agynvkfdmf skicvngdda hplwkwmkiq 150 151 pkgkgilgna ikwnftkfli dkngcvvkry gpmeeplvie kdlphyf