This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
BLVRA H. Crystallographic structure of human biliverdin reductase based on the PDB coordinates The enzyme is displayed as rainbow colored cartoon Nterminus blue Cterminus red while the NADP cofactor is displayed as spacefilling model carbon white oxygen red nitrogen blue phosphorous orange own Boghog Ribbon diagrams