Paraoxonase 1 (PON1) is an antioxidant enzyme associated with high-density lipoproteins (HDL). PON1 has the ability to inhibit lipid peroxides and to hydrolyze a wide variety of substrates such as esters, thioesters, ...

A copper-containing enzyme polyphenol oxidase (other name is tyrosinase) plays crucial role in melanin biosynthesis, as a compound responsible for human pigmentation. Non controlled loss of melanin can cause hypopigmentation ...