Figure 3From: Identification and characterization of the heme-binding proteins SeShp and SeHtsA of Streptococcus equi subspecies equiSeShp and SeHtsA bind heme. (A) UV-visible absorption spectra of 9 μM SeShp (dashed line) and SeHtsA (solid line) in 20 mM Tris-HCl, pH 8.0. (B) Spectra of reduced pyridine hemochrome derived from Shp (positive control) (solid line), SeShp (open circles), and SeHtsA (crosses). The spectra were normalized for comparison.Back to article page