Fig. 6From: Two novel deep-sea sediment metagenome-derived esterases: residue 199 is the determinant of substrate specificity and preferenceSubstrate specificity of DMWf18-558-A199L. The esterase activity of the mutant was determined using p-NP esters. The highest activity was taken as 100%. Data are presented as the mean ± SD (n = 3)Back to article page