title: Origins.
authors.affiliation: Department of Biological Studies, Purdue University, West Lafayette, Indiana 47907, USA.
authors.forename: Michael G
authors.initials: MG
authors.lastname: Rossmann
mesh_terms: D003461:Crystallography / Q000379:methods / Q000639:trends; D006454:Hemoglobins / Q000737:chemistry; D009211:Myoglobin / Q000737:chemistry*
chemical_list: D006454:Hemoglobins; D009211:Myoglobin