crystal structure of a photoactivated rhodopsin, 3d cartoon model , white background

background biochemistry biology biomolecule carbohydrate cartoon chain chemistry coil color computer control copy coupled design dimensional eye generated glycoprotein graphic health helix illustration isolated light low medicine model molecular molecule peptide photosensing phototransduction pigment protein purple receptor rendering research retina rhodopsin ribbon rods science secondary shape sheet signal space strand structure tertiary three transduction white