Oxidation of the thiol moiety of cysteine yields sulfinoalanine, which itself is processed to hypotaurine by an as of yet uncharacterized enzyme in humans . Whether further oxidation of hypotaurine to taurine needs an enzyme is unknown at present (Ye et al. 2007).
|GO Biological Process||L-cysteine catabolic process (0019448)|
|CDO1:Fe2+||cysteine dioxygenase activity (0017172)|
|17135237||An insight into the mechanism of human cysteine dioxygenase. Key roles of the thioether-bonded tyrosine-cysteine cofactor||J Biol Chem||2007|