Hemoglobin (IMAGE) Rutgers University Caption Hemoglobin (PDB ID 4hhb), one of the earliest structures deposited in the archive. Today, there are dozens of structures of hemoglobin in the PDB, showing the process of oxygen binding and revealing the molecular details of sickle cell anemia. Credit Protein Data Bank and David Goodsell Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.