171 GPX4_SPIOL MASDSSAQPKSVHEFVVRDARGNDVDLSIYKGKVLLIVNVASQCGLTNSNYTEMTELYEKYRELGLEILAFPCNQFGNQEPGSNEEVLEFACTRFKAEYPIFDKVDVNGSNAAPIYKFLKSSKGGLFGDGLKWNFTKFLVDKDGNVVDRYAPTTSPKSIEKDVKKLLGIQK Protects cells and enzymes from oxidative damage, by catalyzing the reduction of hydrogen peroxide, lipid peroxides and organic hydroperoxide, by glutathione (By similarity). Probable phospholipid hydroperoxide glutathione peroxidase