Purity >95% by SDS-PAGE. ALDH3A1, also known as Aldehyde dehydrogenase 3 family memberA1, is involved in the detoxification of alcohol-derived acetaldehyde and in the metabolism of corticosteroids, biogenic amines, neurotransmitters, and lipid peroxidation. This protein forms a cytoplasmic homodimer that preferentially oxidizes aromatic and medium-chain (6 carbons or more) saturated and unsaturated aldehyde substrates. It is thought to promote resistance to uV and 4-hydroxy-2-nonenal-induced oxidative damage in the cornea. Recombinant ALDH3A1 protein was expressed in E.coli and purified by using conventional chromatography techniques.