Tables 1 and 2 in Chapter 5 were originally published with incorrect molecular drawings. These have been corrected and the chapter references have been updated.

Table 1 Summary of reported methods for reaction termination and product detection in assays containing pNP-acetate , α-naphthyl acetate , and 4MUA
Table 2 Summary of noncommercial , synthesized carbohydrate analogs used to detect AcXE activity