Flavin-linked Erv-family sulfhydryl oxidases release superoxide anion during catalytic turnover.
Daithankar VN, Wang W, Trujillo JR, Thorpe C. Flavin-linked Erv-family sulfhydryl oxidases release superoxide anion during catalytic turnover. Biochemistry. 2012 Jan 10; 51(1):265-72.