Fig. 3From: A direct interaction between NQO1 and a chemotherapeutic dimeric naphthoquinone a 2Fo-Fc electron density for E6a contoured at 1σ. b Interactions of E6a with the active site residues of hNQO1. The residues from one subunit are represented in blue while the second subunit is shown in magenta. E233 from neighboring dimer is shown in light pink. The hydrogen bonds are shown in gray and weak electrostatic interactions in pale blueBack to article page