>tr|Q0ACZ9|Q0ACZ9_NITEC Periplasmic mercury ion-binding protein OS=Nitrosomonas eutropha GN=merP MKKLFAALALAAVVAPVWAATQTVTLSVPGMTCSTCPITVKKAISKVEGVSKIDVTFETR EAVVTFDDAKTSVQKLTKATGDAGYPSSVKQ