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(a) Superposition of segments of dimer AB of BphAELB400 and of its biphenyl-bound form and (b) superposition of the corresponding segments of dimer KL of BphAEp4and of dimer AB of its 2,6-dichlorobiphenyl-bound form. Both bound forms of BphAELB400 and BphAEp4 are in yellow, native forms are in red. Dashed lines represent H-bonds of substrate complex forms (green) and of native forms (red), spheres represent water molecules.
