TY - GEN AU - Haber,D A AU - Beverley,S M AU - Kiely,M L AU - Schimke,R T TI - Properties of an altered dihydrofolate reductase encoded by amplified genes in cultured mouse fibroblasts SN - 0021-9258 PY - 1981///1215 KW - Animals KW - Cell Line KW - Drug Stability KW - Embryo, Mammalian KW - Fibroblasts KW - enzymology KW - Folic Acid Antagonists KW - pharmacology KW - Gene Amplification KW - drug effects KW - Hydrogen-Ion Concentration KW - Kinetics KW - Methotrexate KW - metabolism KW - Mice KW - Tetrahydrofolate Dehydrogenase KW - genetics N1 - Publication Type: Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S ER -