CHEMICAL DESIGN / SCIENCE PHOTO LIBRARY. CHEMICAL DESIGN / SCIENCE PHOTO LIBRARY.
Computer graphics model of the protein haemoglobin, the oxygen-transporting pigment in blood. The site of interraction between oxygen and haemoglobin is an atom of Iron (Fe++ - yellow ball), which is held in the centre of a haem ring (represented by the green balls). The protein environment and the geometry of atoms surrounding the Iron atom permits oxygen to be bound, carried and ultimately given up without having been oxidised or otherwise changed chemically. The image was produced using Chemical Design's Chem-X software.
Model release not required. Property release not required.