. "\"Catalysis of an oxidation-reduction (redox) reaction in which a sulfur-containing group acts as a hydrogen or electron donor and reduces disulfide.\" [GOC:jl]" . . "oxidoreductase activity, acting on a sulfur group of donors, disulfide as acceptor" . "oxidoreductase activity, acting on sulphur group of donors, disulphide as acceptor" . "EC:1.8.4" . .