Fig. 3. Compound modifications & BRD:ligand co-crystal structures. (A) comparison of alkyl bumps; (B) effect of methoxy shift; (C) effect of ethyl-amide group; (D) effect of tert-butyl ester. Structural alignments of different bumped-compounds co-crystallized with BRD2 BD2 L/V. Dark grey dashes represent hydrogen bonds. Other dashes show inter-atom distances of interest. Cα = alpha carbon of valine or other residue. C2 = 2′ carbon of compound. Cester = carbon following ester bond.
