3.1.2.12 6 - assay at 653164 3.1.2.12 6.4 6.6 - 80985 3.1.2.12 6.9 7.1 - 80982, 80987 3.1.2.12 7 - - 80990 3.1.2.12 7 - assay at 653549 3.1.2.12 7.2 - assay at 666081 3.1.2.12 7.2 - assay at, except with substrate 4-methylumbelliferyl acetate 649455 3.1.2.12 7.4 - assay at 731220 3.1.2.12 7.6 8 optimum 649455 3.1.2.12 8 - - 715774