Fig. 4: Light response of photocobilin proteins with methycobalamin bound.
From: Photocobilins integrate B12 and bilin photochemistry for enzyme control
a Absorbance spectra of SasPcob with only BV bound illuminated at 530 nm. b Absorbance spectra of SasPcob with only AdoCbl bound illuminated at 660 nm. Difference absorbance spectra of SasPcob with methylcobalamin bound after illumination with green (c) or red (d) light. Difference absorbance spectra of SasPcob with methylcobalamin and BV bound after illumination with green (e) or red (f) light. Difference absorbance spectra of AbDPcob with methylcobalamin and BV bound after illumination with green (g) or red (h) light. A dark spectrum was collected prior to any illumination and used as the blank in each case. The up and down arrows indicate the increase and decrease in absorbance, respectively.
