Figure 6
From: Scalable production of biliverdin IXα by Escherichia coli
Absorbance spectra at various times during bilirubin formation from E. coli BL21 (mHO1)-produced biliverdin catalyzed by human recombinant biliverdin reductase A. NADPH-dependent reduction was monitored spectrophotometrically for 6h. The arrows indicate the direction of absorbance change over time during the reaction.