Figure 6
Predicted molecular interactions between the active flavonoids and the BH3-binding groove of Bcl-2. Bcl proteins are presented as gray cartoons of solid surfaces. (A) Crystal structure of Bcl-2 in complex with a Bax BH3 peptide represented by a yellow ribbon (PDB: 2XA0). (B) The binding site can be occupied by the synthetic chemicals as shown via the co-crystal structure of Bcl-2 and navitoclax (PDB: 4LVT). (C) Lonchocarpin is propoesd to occupy the same binding site. (D) Lonchocarpin and compounds 12, 15, 23, 26, 33 in pink color block this hydrophobic BH3-binding groove by a similar way.
