Fig. 6: Fragment merging of compounds 3 and 4 results in more than 100-fold improvement in binding affinity.
From: Fragment-based discovery enables direct targeting of the melanoma oncogene MITF

a Crystal structure of MITF(217-296) with compound 6 (PDB ID: 9H7R, gray), overlaid to 3 (in yellow) and 4 (in orange) from previously solved structures (Fig. 5). Protein sidechains are omitted for clarity and the overlapping central phenyl ring is highlighted by a blue circle. b Chemical structure of compounds 3, 4, and 6 (overlapping phenyl rings are marked in blue).