N-terminal S-hydroxy-S-oxy-L-cysteinyl-[protein] + H(+) => N-terminal L-cysteinyl-[protein] + O2
n-terminal s-hydroxy-s-oxy-l-cysteinyl-[protein] + h(+) => n-terminal l-cysteinyl-[protein] + o2
N-terminal S-hydroxy-S-oxy-L-cysteinyl-[protein] + H(+) => N-terminal L-cysteinyl-[protein] + O2
n-terminal s-hydroxy-s-oxy-l-cysteinyl-[protein] + h(+) => n-terminal l-cysteinyl-[protein] + o2