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22. Methotrexate resistance in an in vivo mouse tumor due to a non-active-site dihydrofolate reductase mutation. Dicker AP; Waltham MC; Volkenandt M; Schweitzer BI; Otter GM; Schmid FA; Sirotnak FM; Bertino JR Proc Natl Acad Sci U S A; 1993 Dec; 90(24):11797-801. PubMed ID: 8265628 [TBL] [Abstract][Full Text] [Related]
23. Rate and extent of interconversion of tetrahydrofolate cofactors to dihydrofolate after cessation of dihydrofolate reductase activity in stationary versus log phase L1210 leukemia cells. Trent DF; Seither RL; Goldman ID J Biol Chem; 1991 Mar; 266(9):5445-9. PubMed ID: 1825999 [TBL] [Abstract][Full Text] [Related]
24. Dihydrofolate reductase from Eimeria tenella: rationalization of chemotherapeutic efficacy of pyrimethamine. Wang CC; Stotish RL; Poe M J Protozool; 1975 Nov; 22(4):564-8. PubMed ID: 1059772 [TBL] [Abstract][Full Text] [Related]
25. Characterization of an R-plasmid dihydrofolate reductase with a monomeric structure. Joyner SS; Fling ME; Stone D; Baccanari DP J Biol Chem; 1984 May; 259(9):5851-6. PubMed ID: 6371010 [TBL] [Abstract][Full Text] [Related]
26. Structure and function of bacterial and mammalian dihydrofolate reductases. Stone D Biochem Soc Trans; 1981 Aug; 9(4):271-3. PubMed ID: 7262441 [No Abstract] [Full Text] [Related]
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28. Dihydrofolate reductase from mouse liver and spleen. Purification, properties and inhibition by substituted 2,4-diaminopyrimidines and 4,6-diaminotriazines. McCullough JL; Bertino JR Biochem Pharmacol; 1971 Mar; 20(3):561-74. PubMed ID: 4402459 [No Abstract] [Full Text] [Related]
29. Identification of a high-molecular-weight nonfunctional protein in L1210 leukemia cells with common antigenic determinants to dihydrofolate reductase. Rothenberg SP; Iqbal MP Cancer Res; 1983 Feb; 43(2):529-35. PubMed ID: 6184148 [TBL] [Abstract][Full Text] [Related]
30. Engineering specificity for folate into dihydrofolate reductase from Escherichia coli. Posner BA; Li L; Bethell R; Tsuji T; Benkovic SJ Biochemistry; 1996 Feb; 35(5):1653-63. PubMed ID: 8634297 [TBL] [Abstract][Full Text] [Related]
31. Properties of a methotrexate-insensitive variant of dihydrofolate reductase derived from methotrexate-resistant L5178Y cells. Goldie JH; Dedhar S; Krystal G J Biol Chem; 1981 Nov; 256(22):11629-35. PubMed ID: 7298621 [TBL] [Abstract][Full Text] [Related]
32. 7,8-Dihydropteroyl oligo-gamma-L-glutamates: synthesis and kinetic studies with purified dihydrofolate reductase from mammalian sources. Coward JK; Parameswaran KN; Cashmore AR; Bertino JR Biochemistry; 1974 Sep; 13(19):3899-903. PubMed ID: 4528865 [No Abstract] [Full Text] [Related]
33. The purification of dihydrofolate reductase from Drosophila melanogaster. Rancourt SL; Walker VK Biochim Biophys Acta; 1990 Jul; 1039(3):261-8. PubMed ID: 2116172 [TBL] [Abstract][Full Text] [Related]
34. A nonfunctional protein in human leukemia cells reacts with antiserum to dihydrofolate reductase from L1210 leukemia cells. Iqbal MP; Rothenberg SP Life Sci; 1981 Aug; 29(7):689-96. PubMed ID: 6168882 [No Abstract] [Full Text] [Related]
35. Purification and properties of Escherichia coli dihydrofolate reductase. Baccanari D; Phillips A; Smith S; Sinski D; Burchall J Biochemistry; 1975 Dec; 14(24):5267-73. PubMed ID: 46 [TBL] [Abstract][Full Text] [Related]
36. Dihydrofolate reductase from a resistant subline of the L1210 lymphoma. Purification by affinity chromatography and ultraviolet difference spectrophotometric and circular dichroic studies. Gupta SV; Greenfield NJ; Poe M; Makulu DR; Williams MN; Moroson BA; Bertino JR Biochemistry; 1977 Jul; 16(14):3073-9. PubMed ID: 19040 [No Abstract] [Full Text] [Related]
37. Age-dependent expression of a novel protein in mouse liver immunologically and functionally homologous with dihydrofolate reductase. Kyner D; Rothenberg SP Biochim Biophys Acta; 1989 Oct; 993(1):56-62. PubMed ID: 2804123 [TBL] [Abstract][Full Text] [Related]
38. A new fluorescent dihydrofolate reductase probe for studies of methotrexate resistance. Rosowsky A; Wright JE; Shapiro H; Beardsley P; Lazarus H J Biol Chem; 1982 Dec; 257(23):14162-7. PubMed ID: 7142200 [TBL] [Abstract][Full Text] [Related]
39. A fluorescent analogue of methotrexate as a probe for folate antagonist molecular receptors. Susten SS; Kempton RJ; Black AM; Freisheim JH Biochem Pharmacol; 1984 Jun; 33(12):1957-62. PubMed ID: 6732854 [TBL] [Abstract][Full Text] [Related]