title: Partial purification and autocatalytic activation of the subunit of the first component of human complement, Clr.
mesh_terms: D002384:Catalysis; D003172:Complement C1 / Q000302:isolation & purification / Q000378:metabolism; D003165:Complement System Proteins / Q000302:isolation & purification; D004792:Enzyme Precursors / Q000302:isolation & purification / Q000378:metabolism; D004950:Esterases / Q000378:metabolism; D006801:Humans
chemical_list: D003172:Complement C1; D004792:Enzyme Precursors; D003165:Complement System Proteins; D004950:Esterases