Royal Society of Chemistry, RSC Advances, 31(12), p. 20296-20304, 2022
DOI: 10.1039/d2ra02880h
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Biliverdin IX-alpha undergoes rotation around the D-ring pyrrole and displays a broad far-red absorbance on binding to monomeric Sandercyanin variant (orange) compared to the wild-type tetrameric protein (cyan).