3.5.1.77 7 - - 3.5.1.77 7.3 7.4 - 3.5.1.77 8 - activity assay 3.5.1.77 8 - dynamic kinetic resolution (DKR) cascade, assay at 3.5.1.77 8 9 N-carbamoyl-D-Phe 3.5.1.77 8.5 - D-carbamoylase AcHyuC alone