1.21.99.5 7 7.5 - 675219 1.21.99.5 7.2 - approximately 349706 1.21.99.5 7.3 - assay at 714522 1.21.99.5 7.5 - - 349709 1.21.99.5 7.5 - assay at 349700, 349704, 349707 1.21.99.5 7.8 - assay at 349705 1.21.99.5 8 - pH-optimum about 8.0 349700 1.21.99.5 8.1 - - 657587 1.21.99.5 8.1 - assay at 349702