1.1.1.398 2-(glutathion-S-yl)-2-methylbut-3-en-1-ol + 2 NAD+ + H2O = 2-(glutathion-S-yl)-2-methylbut-3-enoate + 2 NADH + 2 H+ overall reaction - 1.1.1.398 2-(glutathion-S-yl)-2-methylbut-3-en-1-ol + NAD+ = 2-(glutathion-S-yl)-2-methylbut-3-enal + NADH + H+ (1a) - 1.1.1.398 2-(glutathion-S-yl)-2-methylbut-3-enal + NAD+ + H2O = 2-(glutathion-S-yl)-2-methylbut-3-enoate + NADH + H+ (1b) -