title: Why purify enzymes?
authors.forename: Arthur
authors.initials: A
authors.lastname: Kornberg
mesh_terms: D000818:Animals; D001671:Biochemistry / Q000266:history / Q000379:methods; D002458:Cell Fractionation / Q000379:methods; D002474:Cell-Free System / Q000201:enzymology; D004330:Drosophila / Q000201:enzymology; D004798:Enzymes / Q000737:chemistry / Q000302:isolation & purification*; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D015003:Yeasts / Q000201:enzymology
chemical_list: D004798:Enzymes