a thiol

1. L-cysteinyl-[sulfatase] + 2 a thiol + O2 = an organic disulfide + 3-oxo-L-alanyl-[sulfatase] + hydrogen sulfide + H2O + H(+)

Catalysed by SUMF1

1. L-cysteinyl-[sulfatase] + 2 a thiol + O2 = an organic disulfide + 3-oxo-L-alanyl-[sulfatase] + hydrogen sulfide + H2O + H(+)

Catalysed by SUMF1

1. a thioester + H2O = a thiol + a carboxylate + H(+)

Catalysed by PNKD

1. a thiol + S-adenosyl-L-methionine = a methyl thioether + S-adenosyl-L-homocysteine + H(+)

Catalysed by TMT1B, TMT1A

1. L-cysteinyl-[sulfatase] + 2 a thiol + O2 = an organic disulfide + 3-oxo-L-alanyl-[sulfatase] + hydrogen sulfide + H2O + H(+)
2. methanethiol + O2 + H2O = hydrogen sulfide + formaldehyde + H2O2 + H(+)

Catalysed by SUMF1, SELENBP1

1. L-cysteinyl-[sulfatase] + 2 a thiol + O2 = an organic disulfide + 3-oxo-L-alanyl-[sulfatase] + hydrogen sulfide + H2O + H(+)
2. hydrogen sulfide + 2 O2 = sulfate + H(+)

Catalysed by SUMF1, SOD1

1. L-cysteinyl-[sulfatase] + 2 a thiol + O2 = an organic disulfide + 3-oxo-L-alanyl-[sulfatase] + hydrogen sulfide + H2O + H(+)
2. L-serine hydro-lyase (adding hydrogen sulfide, L-cysteine-forming)
3. N-acetylglutamate synthase (N-acetyl-L-cysteine)

Catalysed by SUMF1, CBS, NAGScytosol, mitochondrial matrix

1. L-cysteinyl-[sulfatase] + 2 a thiol + O2 = an organic disulfide + 3-oxo-L-alanyl-[sulfatase] + hydrogen sulfide + H2O + H(+)
2. thiosulfate + 2 glutathione = glutathione disulfide + hydrogen sulfide + sulfite + 2 H(+)
3. cumene hydroperoxide + 2 glutathione = 2-phenylpropan-2-ol + glutathione disulfide + H2O