title: Ultracentrifugation studies on the native form of the first component of human complement (C1).
mesh_terms: D003172:Complement C1; D003165:Complement System Proteins; D004305:Dose-Response Relationship, Drug; D006801:Humans; D012996:Solutions; D013329:Structure-Activity Relationship; D014461:Ultracentrifugation
chemical_list: D003172:Complement C1; D012996:Solutions; D003165:Complement System Proteins