. "\"Catalysis of the reaction: substrate with reduced sulfide groups = substrate with oxidized disulfide bonds.\" [MetaCyc:DISULFOXRED-RXN]" . . "disulfide oxidoreductase activity" . "disulphide oxidoreductase activity" . "Reactome:REACT_103411 \"Oxidation of Cysteine to Cystine in Proinsulin, Canis familiaris\"" . "Reactome:REACT_106321 \"Oxidation of Cysteine to Cystine in Proinsulin, Gallus gallus\"" . "Reactome:REACT_107245 \"Oxidation of Cysteine to Cystine in Proinsulin, Rattus norvegicus\"" . "Reactome:REACT_107998 \"Oxidation of Cysteine to Cystine in Proinsulin, Mus musculus\"" . "Reactome:REACT_108531 \"Oxidation of Cysteine to Cystine in Proinsulin, Danio rerio\"" . "Reactome:REACT_15454 \"Oxidation of Cysteine to Cystine in Proinsulin, Homo sapiens\"" . "Reactome:REACT_77430 \"Oxidation of Cysteine to Cystine in Proinsulin, Bos taurus\"" . "Reactome:REACT_77708 \"Oxidation of Cysteine to Cystine in Proinsulin, Xenopus tropicalis\"" . "Reactome:REACT_96324 \"Oxidation of Cysteine to Cystine in Proinsulin, Taeniopygia guttata\"" . .