Fig. 4From: Two novel deep-sea sediment metagenome-derived esterases: residue 199 is the determinant of substrate specificity and preferenceCartoon representation of 3D structural models of DMWf18-543 (a) and DMWf18-558 (b). The catalytic domains are shown in green/blue and yellow, and the cap domains are shown in magenta. The catalytic triad residues are indicated as stick modelsBack to article page