Fig. 3From: The first fungal laccase with an alkaline pH optimum obtained by directed evolution and its application in indigo dye decolorizationStructural simulation of PIE5. a Ribbon representation of PIE5 3D structure model with the mutated residues. b Small molecule transport channels in PIE5. Green: channel p1; Red: channel p2; Pink: channel p3; Blue: channel p4; Yellow: channel p5. c, d Stereo views of the local sites in C. cinerea rLcc9 (c) and the mutated sites in variant PIE5 (d)Back to article page