Fig. 2.
pH optima of the purified, recombinant hexosaminidases. pNP-β-GlcNAc (squares) and pNP-β-GalNAc (circles) were used as substrates. (A) Drosophila melanogaster FDL, (B) A. mellifera FDL, (C) Caenorhabditis HEX-2, (D) Caenorhabditis HEX-3 and (E) Caenorhabditis HEX-4. Drosophila melanogaster and A. mellifera FDL enzymes were expressed in P. pastoris. Values represent averages±standard error.