Enzymatic reactions [BR:br08201]
1. Oxidoreductase reactions
1.8 Acting on a sulfur group of donors
1.8.5 With a quinone or similar compound as acceptor
1.8.5.10
R13227 Hydrogen sulfide + Protein dithiol + 2 p-Benzoquinone <=> Protein-trisulfide + 2 Hydroquinone