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. Author manuscript; available in PMC: 2011 Sep 1.
Published in final edited form as: Protein Expr Purif. 2010 Mar 18;73(1):78–82. doi: 10.1016/j.pep.2010.03.010

Fig 4.

Fig 4

UV-Vis spectra of a Heme Binding PAS domain (HBPAS; His-ligated) when expressed by itself (thin line) shows four Q-band absorption peaks (inset). Co-expression with FC (thick line) increases the heme content and results in only two Q-bands (inset).