Not one ring but many: Antioxidant enzyme family can assemble in far more diverse ways than previously thought‎

Peroxiredoxins are among the most abundant enzymes involved in managing oxidative stress. They control the levels of peroxides such as hydrogen peroxide, relay redox signals, and help protect other proteins during stress. For decades, scientists assumed that these enzymes assemble exclusively into complexes composed of 10 identical subunits arranged in a donut-like ring. A new study challenges this view.