Fig. 4

a UV–Vis absorption spectrum of the purified rPsaDyP showing the Soret band at 409 nm and two additional maxima in the region of 510 and 640 nm; b isoelectric focusing of purified rPsaDyP, stained with colloidal Coomassie (1) and specific staining for heme/metal enzymes with TMB (2); M IEF Marker 3–10