Fig. 2From: Examination of the Reduced Affinity of the Thymidylate Synthase G52S Mutation for FdUMP by Ab Initio and Semi-empirical StudiesOptimization of the tripeptide at HF/6-31G* level. (A) Arg50-Thr51-Gly52 optimized at HF/6-31G* level. (B) Arg50-Thr51-Ser52 optimized at HF/6-31G* level. (C) Arg50-Thr51-Gly52 and Arg50-Thr51-Ser52 superimposed at Thr51 residue.Back to article page