X-ray structure of CYP158A2 from the soil bacterium Streptomyces coelicolor. This is one of the 18 P450s in this bacterium. It catalyzes the dimerization of two flaviolin molecules (F1,F2) forming a pigment which protects bacteria from UV radiation. Data from B. Zhao and M.R. Waterman, accompanying the manuscript "Steps along the path from microsomal Fex to 6500 cytochromes P450". Acta Chim. Slov. 2008, 55(1).