Fig. 6From: Characterization of two flavonol synthases with iron-independent flavanone 3-hydroxylase activity from Ornithogalum caudatum JacqThe effect of metal ions and chelating agents on activities of OcFLS1 and OcFLS2. a, d, The effect of metal ions and chelating agents on FLS activity of OcFLS1 (a) and OcFLS2 (d) in the presence of Fe2+. b, e, The effect of metal ions and chelating agents on F3H activity of OcFLS1 (b) and OcFLS2 (e) in the presence of Fe2+. The enzymatic activities in buffers containing only Fe2+ were set to 100%. c, f, The effect of metal ions and chelating agents on F3H activity of OcFLS1 (c) and OcFLS2 (f) in the absence of Fe2+. The enzymatic activities in buffers without any metal ions were set to 100%. The data are presented as means ± standard deviation values of three biological replicatesBack to article page