Structure-activity relationship guides enantiomeric preference among potent inhibitors of B. anthracis dihydrofolate reductase

Structure-activity relationship for enantiomers of potent inhibitors of B. anthracis dihydrofolate reductase.

A thrombin cut site was engineered between the C-terminus and the 6 x His tag

16-22% PEG 3350, 0.2M CaCl2, 0.1M MES, +/- 3% glycerol , pH 5.8, VAPOR DIFFUSION, SITTING DROP, temperature 298K

B. anthracis DHFR with dihyrophthalazine-(S)-propyl derivative

B. anthracis DHFR with dihyrophthalazine-(S)-isopropyl derivative

B. anthracis DHFR with dihyrophthalazine-(S,R)-phenyl derivative

B. anthracis DHFR with dihyrophthalazine-(S)-trifluoropropyl derivative

B. anthracis DHFR with dihydrophthalazine-(R)-isobutenyl derivative

dihydrofolate reductase, OXIDOREDUCTASE-OXIDOREDUCTASE INHIBITOR complex