. "Catalysis of the reaction: dithioerythritol + thiosulfate = hydrogen sulfide + dithioerythritol disulfide + sulfite." . . "TSR" . "thiosulfate-dithiol sulfurtransferase activity" . "thiosulfate reductase activity" . "thiosulfate:dithioerythritol sulfurtransferase activity" . "thiosulphate-dithiol sulphurtransferase activity" . . .